731674441 has 4 divisors (see below), whose sum is σ = 774714132. Its totient is φ = 688634752.

The previous prime is 731674423. The next prime is 731674469. The reversal of 731674441 is 144476137.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144476137 = 13 ⋅11113549.

It can be written as a sum of positive squares in 2 ways, for example, as 228614400 + 503060041 = 15120^2 + 22429^2 .

It is a cyclic number.

It is not a de Polignac number, because 731674441 - 2⁵ = 731674409 is a prime.

It is a super-2 number, since 2×731674441² = 1070694975225324962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 731674441.

It is not an unprimeable number, because it can be changed into a prime (731674841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21519820 + ... + 21519853.

It is an arithmetic number, because the mean of its divisors is an integer number (193678533).

Almost surely, 2^731674441 is an apocalyptic number.

It is an amenable number.

731674441 is a deficient number, since it is larger than the sum of its proper divisors (43039691).

731674441 is a wasteful number, since it uses less digits than its factorization.

731674441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43039690.

The product of its digits is 56448, while the sum is 37.

The square root of 731674441 is about 27049.4813443807. The cubic root of 731674441 is about 901.0992498461.

The spelling of 731674441 in words is "seven hundred thirty-one million, six hundred seventy-four thousand, four hundred forty-one".