90935428 has 12 divisors (see below), whose sum is σ = 159357520. Its totient is φ = 45404712.

The previous prime is 90935423. The next prime is 90935441. The reversal of 90935428 is 82453909.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90935423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12426 + ... + 18337.

Almost surely, 2^90935428 is an apocalyptic number.

It is an amenable number.

90935428 is a deficient number, since it is larger than the sum of its proper divisors (68422092).

90935428 is a wasteful number, since it uses less digits than its factorization.

90935428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31506 (or 31504 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 90935428 is about 9536.0069211384. The cubic root of 90935428 is about 449.6877306816.

The spelling of 90935428 in words is "ninety million, nine hundred thirty-five thousand, four hundred twenty-eight".