89689977 has 32 divisors (see below), whose sum is σ = 151522560. Its totient is φ = 51943680.

The previous prime is 89689973. The next prime is 89689991. The reversal of 89689977 is 77998698.

It is not a de Polignac number, because 89689977 - 2² = 89689973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89689973) 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, 1549 + ... + 13482.

It is an arithmetic number, because the mean of its divisors is an integer number (4735080).

Almost surely, 2^89689977 is an apocalyptic number.

It is an amenable number.

89689977 is a deficient number, since it is larger than the sum of its proper divisors (61832583).

89689977 is a wasteful number, since it uses less digits than its factorization.

89689977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15070 (or 15064 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The square root of 89689977 is about 9470.4792381378. The cubic root of 89689977 is about 447.6253128451.

The spelling of 89689977 in words is "eighty-nine million, six hundred eighty-nine thousand, nine hundred seventy-seven".