74623157 has 8 divisors (see below), whose sum is σ = 87364032. Its totient is φ = 62402400.

The previous prime is 74623139. The next prime is 74623181. The reversal of 74623157 is 75132647.

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 74623157 - 2⁶ = 74623093 is a prime.

It is a super-3 number, since 3×74623157³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74623057) 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 7 ways as a sum of consecutive naturals, for example, 129719 + ... + 130292.

It is an arithmetic number, because the mean of its divisors is an integer number (10920504).

Almost surely, 2^74623157 is an apocalyptic number.

It is an amenable number.

74623157 is a deficient number, since it is larger than the sum of its proper divisors (12740875).

74623157 is a wasteful number, since it uses less digits than its factorization.

74623157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260059.

The product of its digits is 35280, while the sum is 35.

The square root of 74623157 is about 8638.4695982564. The cubic root of 74623157 is about 421.0088314808.

The spelling of 74623157 in words is "seventy-four million, six hundred twenty-three thousand, one hundred fifty-seven".