74557889 has 8 divisors (see below), whose sum is σ = 86037120. Its totient is φ = 63285696.

The previous prime is 74557877. The next prime is 74557907. The reversal of 74557889 is 98875547.

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 74557889 - 2⁸ = 74557633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74557889.

It is not an unprimeable number, because it can be changed into a prime (74559889) 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, 50984 + ... + 52425.

It is an arithmetic number, because the mean of its divisors is an integer number (10754640).

Almost surely, 2^74557889 is an apocalyptic number.

It is an amenable number.

74557889 is a deficient number, since it is larger than the sum of its proper divisors (11479231).

74557889 is a wasteful number, since it uses less digits than its factorization.

74557889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103519.

The product of its digits is 2822400, while the sum is 53.

The square root of 74557889 is about 8634.6910193706. The cubic root of 74557889 is about 420.8860527055.

The spelling of 74557889 in words is "seventy-four million, five hundred fifty-seven thousand, eight hundred eighty-nine".