74697993 has 12 divisors (see below), whose sum is σ = 110193408. Its totient is φ = 48738840.

The previous prime is 74697979. The next prime is 74698031. The reversal of 74697993 is 39979647.

It is not a de Polignac number, because 74697993 - 2⁶ = 74697929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74697913) 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 11 ways as a sum of consecutive naturals, for example, 87873 + ... + 88718.

It is an arithmetic number, because the mean of its divisors is an integer number (9182784).

Almost surely, 2^74697993 is an apocalyptic number.

It is an amenable number.

74697993 is a deficient number, since it is larger than the sum of its proper divisors (35495415).

74697993 is a wasteful number, since it uses less digits than its factorization.

74697993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176644 (or 176641 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 74697993 is about 8642.8000671079. The cubic root of 74697993 is about 421.1495210107.

The spelling of 74697993 in words is "seventy-four million, six hundred ninety-seven thousand, nine hundred ninety-three".