74057691 has 8 divisors (see below), whose sum is σ = 98864640. Its totient is φ = 49311272.

The previous prime is 74057647. The next prime is 74057693. The reversal of 74057691 is 19675047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74057691 - 2⁷ = 74057563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74057693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12195 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (12358080).

Almost surely, 2^74057691 is an apocalyptic number.

74057691 is a deficient number, since it is larger than the sum of its proper divisors (24806949).

74057691 is a wasteful number, since it uses less digits than its factorization.

74057691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30265.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 74057691 is about 8605.6778350110. The cubic root of 74057691 is about 419.9427189455.

The spelling of 74057691 in words is "seventy-four million, fifty-seven thousand, six hundred ninety-one".