68800989 has 32 divisors (see below), whose sum is σ = 100552320. Its totient is φ = 41674752.

The previous prime is 68800987. The next prime is 68800999. The reversal of 68800989 is 98900886.

It is not a de Polignac number, because 68800989 - 2¹ = 68800987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68800987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300327 + ... + 300555.

It is an arithmetic number, because the mean of its divisors is an integer number (3142260).

Almost surely, 2^68800989 is an apocalyptic number.

It is an amenable number.

68800989 is a deficient number, since it is larger than the sum of its proper divisors (31751331).

68800989 is a wasteful number, since it uses less digits than its factorization.

68800989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 68800989 is about 8294.6361583857. The cubic root of 68800989 is about 409.7618863272.

The spelling of 68800989 in words is "sixty-eight million, eight hundred thousand, nine hundred eighty-nine".