89727967 has 24 divisors (see below), whose sum is σ = 108879120. Its totient is φ = 73664640.

The previous prime is 89727959. The next prime is 89727977. The reversal of 89727967 is 76972798.

It is not a de Polignac number, because 89727967 - 2³ = 89727959 is a prime.

It is a super-2 number, since 2×89727967² = 16102216123906178, which contains 22 as substring.

Its product of digits (2667168) is a multiple of the sum of its prime divisors (864).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89727977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118153 + ... + 118909.

It is an arithmetic number, because the mean of its divisors is an integer number (4536630).

Almost surely, 2^89727967 is an apocalyptic number.

89727967 is a deficient number, since it is larger than the sum of its proper divisors (19151153).

89727967 is a wasteful number, since it uses less digits than its factorization.

89727967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 864 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 55.

The square root of 89727967 is about 9472.4847321070. The cubic root of 89727967 is about 447.6885041693.

The spelling of 89727967 in words is "eighty-nine million, seven hundred twenty-seven thousand, nine hundred sixty-seven".