74937685 has 4 divisors (see below), whose sum is σ = 89925228. Its totient is φ = 59950144.

The previous prime is 74937673. The next prime is 74937689. The reversal of 74937685 is 58673947.

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: 58673947 = 167 ⋅351341.

It can be written as a sum of positive squares in 2 ways, for example, as 51811204 + 23126481 = 7198^2 + 4809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74937685 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74937689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7493764 + ... + 7493773.

It is an arithmetic number, because the mean of its divisors is an integer number (22481307).

Almost surely, 2^74937685 is an apocalyptic number.

It is an amenable number.

74937685 is a deficient number, since it is larger than the sum of its proper divisors (14987543).

74937685 is a wasteful number, since it uses less digits than its factorization.

74937685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987542.

The product of its digits is 1270080, while the sum is 49.

The square root of 74937685 is about 8656.6555320170. The cubic root of 74937685 is about 421.5995036072.

The spelling of 74937685 in words is "seventy-four million, nine hundred thirty-seven thousand, six hundred eighty-five".