74927665 has 8 divisors (see below), whose sum is σ = 90411048. Its totient is φ = 59610240.

The previous prime is 74927647. The next prime is 74927693. The reversal of 74927665 is 56672947.

It can be written as a sum of positive squares in 4 ways, for example, as 2745649 + 72182016 = 1657^2 + 8496^2 .

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

It is not a de Polignac number, because 74927665 - 2¹³ = 74919473 is a prime.

It is a super-2 number, since 2×74927665² = 11228309964704450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40492 + ... + 42301.

It is an arithmetic number, because the mean of its divisors is an integer number (11301381).

Almost surely, 2^74927665 is an apocalyptic number.

It is an amenable number.

74927665 is a deficient number, since it is larger than the sum of its proper divisors (15483383).

74927665 is a wasteful number, since it uses less digits than its factorization.

74927665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82979.

The product of its digits is 635040, while the sum is 46.

The square root of 74927665 is about 8656.0767672197. The cubic root of 74927665 is about 421.5807119258.

The spelling of 74927665 in words is "seventy-four million, nine hundred twenty-seven thousand, six hundred sixty-five".