3734581 has 4 divisors (see below), whose sum is σ = 3751552. Its totient is φ = 3717612.

The previous prime is 3734569. The next prime is 3734587. The reversal of 3734581 is 1854373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3734581 - 2⁷ = 3734453 is a prime.

It is a super-2 number, since 2×3734581² = 27894190491122, which contains 22 as substring.

It is a Duffinian number.

3734581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3734587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8151 + ... + 8596.

It is an arithmetic number, because the mean of its divisors is an integer number (937888).

Almost surely, 2^3734581 is an apocalyptic number.

It is an amenable number.

3734581 is a deficient number, since it is larger than the sum of its proper divisors (16971).

3734581 is a wasteful number, since it uses less digits than its factorization.

3734581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16970.

The product of its digits is 10080, while the sum is 31.

The square root of 3734581 is about 1932.5064036116. The cubic root of 3734581 is about 155.1483975938.

The spelling of 3734581 in words is "three million, seven hundred thirty-four thousand, five hundred eighty-one".