90189376 has 14 divisors (see below), whose sum is σ = 178969670. Its totient is φ = 45094656.

The previous prime is 90189373. The next prime is 90189389. The reversal of 90189376 is 67398109.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 3326976 = 9320^2 + 1824^2 .

It is not an unprimeable number, because it can be changed into a prime (90189373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704541 + ... + 704668.

Almost surely, 2^90189376 is an apocalyptic number.

It is an amenable number.

90189376 is a deficient number, since it is larger than the sum of its proper divisors (88780294).

90189376 is a wasteful number, since it uses less digits than its factorization.

90189376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409221 (or 1409211 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 90189376 is about 9496.8087271462. The cubic root of 90189376 is about 448.4545768590.

The spelling of 90189376 in words is "ninety million, one hundred eighty-nine thousand, three hundred seventy-six".