74890937 has 4 divisors (see below), whose sum is σ = 81699216. Its totient is φ = 68082660.

The previous prime is 74890927. The next prime is 74890939. The reversal of 74890937 is 73909847.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73909847 = 11 ⋅6719077.

It is a cyclic number.

It is not a de Polignac number, because 74890937 - 2⁸ = 74890681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74890891 and 74890900.

It is not an unprimeable number, because it can be changed into a prime (74890939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404123 + ... + 3404144.

It is an arithmetic number, because the mean of its divisors is an integer number (20424804).

Almost surely, 2^74890937 is an apocalyptic number.

It is an amenable number.

74890937 is a deficient number, since it is larger than the sum of its proper divisors (6808279).

74890937 is a wasteful number, since it uses less digits than its factorization.

74890937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808278.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 74890937 is about 8653.9549917942. The cubic root of 74890937 is about 421.5118172702.

The spelling of 74890937 in words is "seventy-four million, eight hundred ninety thousand, nine hundred thirty-seven".