89090420 has 12 divisors (see below), whose sum is σ = 187089924. Its totient is φ = 35636160.

The previous prime is 89090399. The next prime is 89090423. The reversal of 89090420 is 2409098.

It can be written as a sum of positive squares in 2 ways, for example, as 63648484 + 25441936 = 7978^2 + 5044^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89090423) 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, 2227241 + ... + 2227280.

It is an arithmetic number, because the mean of its divisors is an integer number (15590827).

Almost surely, 2^89090420 is an apocalyptic number.

It is an amenable number.

89090420 is an abundant number, since it is smaller than the sum of its proper divisors (97999504).

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

89090420 is a wasteful number, since it uses less digits than its factorization.

89090420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454530 (or 4454528 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 89090420 is about 9438.7721659123. The cubic root of 89090420 is about 446.6256577286.

The spelling of 89090420 in words is "eighty-nine million, ninety thousand, four hundred twenty".