4374781 has 4 divisors (see below), whose sum is σ = 4379452. Its totient is φ = 4370112.

The previous prime is 4374767. The next prime is 4374787. The reversal of 4374781 is 1874734.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4347225 + 27556 = 2085^2 + 166^2 .

It is a cyclic number.

It is not a de Polignac number, because 4374781 - 2⁵ = 4374749 is a prime.

It is a super-2 number, since 2×4374781² = 38277417595922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4374787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390 + ... + 2983.

It is an arithmetic number, because the mean of its divisors is an integer number (1094863).

Almost surely, 2^4374781 is an apocalyptic number.

It is an amenable number.

4374781 is a deficient number, since it is larger than the sum of its proper divisors (4671).

4374781 is a wasteful number, since it uses less digits than its factorization.

4374781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670.

The product of its digits is 18816, while the sum is 34.

The square root of 4374781 is about 2091.5977146669. The cubic root of 4374781 is about 163.5505864600.

The spelling of 4374781 in words is "four million, three hundred seventy-four thousand, seven hundred eighty-one".