89870012 has 6 divisors (see below), whose sum is σ = 157272528. Its totient is φ = 44935004.

The previous prime is 89870009. The next prime is 89870029. The reversal of 89870012 is 21007898.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11233748 + ... + 11233755.

It is an arithmetic number, because the mean of its divisors is an integer number (26212088).

Almost surely, 2^89870012 is an apocalyptic number.

It is an amenable number.

89870012 is a deficient number, since it is larger than the sum of its proper divisors (67402516).

89870012 is a wasteful number, since it uses less digits than its factorization.

89870012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22467507 (or 22467505 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 89870012 is about 9479.9795358429. The cubic root of 89870012 is about 447.9246192793.

The spelling of 89870012 in words is "eighty-nine million, eight hundred seventy thousand, twelve".