89977261 has 4 divisors (see below), whose sum is σ = 98157024. Its totient is φ = 81797500.

The previous prime is 89977259. The next prime is 89977289. The reversal of 89977261 is 16277998.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89977261 - 2¹ = 89977259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89977231) 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, 4089865 + ... + 4089886.

It is an arithmetic number, because the mean of its divisors is an integer number (24539256).

Almost surely, 2^89977261 is an apocalyptic number.

It is an amenable number.

89977261 is a deficient number, since it is larger than the sum of its proper divisors (8179763).

89977261 is a wasteful number, since it uses less digits than its factorization.

89977261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179762.

The product of its digits is 381024, while the sum is 49.

The square root of 89977261 is about 9485.6344542682. The cubic root of 89977261 is about 448.1027297499.

The spelling of 89977261 in words is "eighty-nine million, nine hundred seventy-seven thousand, two hundred sixty-one".