89978312 has 32 divisors (see below), whose sum is σ = 173259000. Its totient is φ = 43789824.

The previous prime is 89978311. The next prime is 89978321. The reversal of 89978312 is 21387998.

It can be written as a sum of positive squares in 4 ways, for example, as 81252196 + 8726116 = 9014^2 + 2954^2 .

It is not an unprimeable number, because it can be changed into a prime (89978311) 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, 57314 + ... + 58862.

Almost surely, 2^89978312 is an apocalyptic number.

It is an amenable number.

89978312 is a deficient number, since it is larger than the sum of its proper divisors (83280688).

89978312 is a wasteful number, since it uses less digits than its factorization.

89978312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745 (or 1741 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 89978312 is about 9485.6898536691. The cubic root of 89978312 is about 448.1044744652.

The spelling of 89978312 in words is "eighty-nine million, nine hundred seventy-eight thousand, three hundred twelve".