74596991 has 8 divisors (see below), whose sum is σ = 85868160. Its totient is φ = 63479448.

The previous prime is 74596987. The next prime is 74597053. The reversal of 74596991 is 19969547.

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 74596991 - 2² = 74596987 is a prime.

It is a super-2 number, since 2×74596991² = 11129422132508162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74596891) 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, 37361 + ... + 39306.

It is an arithmetic number, because the mean of its divisors is an integer number (10733520).

Almost surely, 2^74596991 is an apocalyptic number.

74596991 is a deficient number, since it is larger than the sum of its proper divisors (11271169).

74596991 is a wasteful number, since it uses less digits than its factorization.

74596991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76813.

The product of its digits is 612360, while the sum is 50.

The square root of 74596991 is about 8636.9549610960. The cubic root of 74596991 is about 420.9596179599.

The spelling of 74596991 in words is "seventy-four million, five hundred ninety-six thousand, nine hundred ninety-one".