90919292 has 12 divisors (see below), whose sum is σ = 164595480. Its totient is φ = 43892016.

The previous prime is 90919289. The next prime is 90919333. The reversal of 90919292 is 29291909.

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, 391778 + ... + 392009.

It is an arithmetic number, because the mean of its divisors is an integer number (13716290).

Almost surely, 2^90919292 is an apocalyptic number.

It is an amenable number.

90919292 is a deficient number, since it is larger than the sum of its proper divisors (73676188).

90919292 is a wasteful number, since it uses less digits than its factorization.

90919292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783820 (or 783818 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 90919292 is about 9535.1608271701. The cubic root of 90919292 is about 449.6611308895.

The spelling of 90919292 in words is "ninety million, nine hundred nineteen thousand, two hundred ninety-two".