90229684 has 12 divisors (see below), whose sum is σ = 161753508. Its totient is φ = 44014400.

The previous prime is 90229631. The next prime is 90229687. The reversal of 90229684 is 48692209.

It can be written as a sum of positive squares in 2 ways, for example, as 10627600 + 79602084 = 3260^2 + 8922^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90229687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274927 + ... + 275254.

It is an arithmetic number, because the mean of its divisors is an integer number (13479459).

Almost surely, 2^90229684 is an apocalyptic number.

It is an amenable number.

90229684 is a deficient number, since it is larger than the sum of its proper divisors (71523824).

90229684 is a wasteful number, since it uses less digits than its factorization.

90229684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550226 (or 550224 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 90229684 is about 9498.9306766604. The cubic root of 90229684 is about 448.5213756167.

The spelling of 90229684 in words is "ninety million, two hundred twenty-nine thousand, six hundred eighty-four".