89120977 has 12 divisors (see below), whose sum is σ = 100050048. Its totient is φ = 79290200.

The previous prime is 89120971. The next prime is 89121007. The reversal of 89120977 is 77902198.

It is a happy number.

It is not a de Polignac number, because 89120977 - 2¹¹ = 89118929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89120971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2149 + ... + 13522.

It is an arithmetic number, because the mean of its divisors is an integer number (8337504).

Almost surely, 2^89120977 is an apocalyptic number.

It is an amenable number.

89120977 is a deficient number, since it is larger than the sum of its proper divisors (10929071).

89120977 is a wasteful number, since it uses less digits than its factorization.

89120977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15740 (or 15729 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 89120977 is about 9440.3907228462. The cubic root of 89120977 is about 446.6767143974.

The spelling of 89120977 in words is "eighty-nine million, one hundred twenty thousand, nine hundred seventy-seven".