120899864 has 16 divisors (see below), whose sum is σ = 227492520. Its totient is φ = 60235200.

The previous prime is 120899861. The next prime is 120899887. The reversal of 120899864 is 468998021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120899861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24437 + ... + 28964.

Almost surely, 2^120899864 is an apocalyptic number.

It is an amenable number.

120899864 is a deficient number, since it is larger than the sum of its proper divisors (106592656).

120899864 is a wasteful number, since it uses less digits than its factorization.

120899864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53690 (or 53686 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 120899864 is about 10995.4474215468. The cubic root of 120899864 is about 494.4722655090.

The spelling of 120899864 in words is "one hundred twenty million, eight hundred ninety-nine thousand, eight hundred sixty-four".