89179380 has 60 divisors (see below), whose sum is σ = 279764100. Its totient is φ = 23780736.

The previous prime is 89179367. The next prime is 89179393. The reversal of 89179380 is 8397198.

It is an interprime number because it is at equal distance from previous prime (89179367) and next prime (89179393).

It can be written as a sum of positive squares in 2 ways, for example, as 59629284 + 29550096 = 7722^2 + 5436^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25905 + ... + 29144.

It is an arithmetic number, because the mean of its divisors is an integer number (4662735).

Almost surely, 2^89179380 is an apocalyptic number.

It is an amenable number.

89179380 is an abundant number, since it is smaller than the sum of its proper divisors (190584720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89179380 is a wasteful number, since it uses less digits than its factorization.

89179380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55070 (or 55059 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 89179380 is about 9443.4834674499. The cubic root of 89179380 is about 446.7742655560.

The spelling of 89179380 in words is "eighty-nine million, one hundred seventy-nine thousand, three hundred eighty".