89795920 has 20 divisors (see below), whose sum is σ = 208775700. Its totient is φ = 35918336.

The previous prime is 89795899. The next prime is 89795941. The reversal of 89795920 is 2959798.

It is an interprime number because it is at equal distance from previous prime (89795899) and next prime (89795941).

It can be written as a sum of positive squares in 2 ways, for example, as 50808384 + 38987536 = 7128^2 + 6244^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561145 + ... + 561304.

It is an arithmetic number, because the mean of its divisors is an integer number (10438785).

Almost surely, 2^89795920 is an apocalyptic number.

89795920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89795920 is an abundant number, since it is smaller than the sum of its proper divisors (118979780).

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

89795920 is a wasteful number, since it uses less digits than its factorization.

89795920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122462 (or 1122456 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 89795920 is about 9476.0709157330. The cubic root of 89795920 is about 447.8014904970.

The spelling of 89795920 in words is "eighty-nine million, seven hundred ninety-five thousand, nine hundred twenty".