90028796 has 24 divisors (see below), whose sum is σ = 185095344. Its totient is φ = 37774080.

The previous prime is 90028769. The next prime is 90028801. The reversal of 90028796 is 69782009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78125 + ... + 79268.

It is an arithmetic number, because the mean of its divisors is an integer number (7712306).

Almost surely, 2^90028796 is an apocalyptic number.

It is an amenable number.

90028796 is an abundant number, since it is smaller than the sum of its proper divisors (95066548).

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

90028796 is a wasteful number, since it uses less digits than its factorization.

90028796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157421 (or 157419 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 90028796 is about 9488.3505415852. The cubic root of 90028796 is about 448.1882645707.

It can be divided in two parts, 900 and 28796, that multiplied together give a triangular number (25916400 = T₇₁₉₉).

The spelling of 90028796 in words is "ninety million, twenty-eight thousand, seven hundred ninety-six".