89290428 has 12 divisors (see below), whose sum is σ = 208344360. Its totient is φ = 29763472.

The previous prime is 89290379. The next prime is 89290429. The reversal of 89290428 is 82409298.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 89290428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89290429) 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, 3720423 + ... + 3720446.

It is an arithmetic number, because the mean of its divisors is an integer number (17362030).

Almost surely, 2^89290428 is an apocalyptic number.

It is an amenable number.

89290428 is an abundant number, since it is smaller than the sum of its proper divisors (119053932).

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

89290428 is a wasteful number, since it uses less digits than its factorization.

89290428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440876 (or 7440874 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 89290428 is about 9449.3612482538. The cubic root of 89290428 is about 446.9596328075.

The spelling of 89290428 in words is "eighty-nine million, two hundred ninety thousand, four hundred twenty-eight".