90272329 has 12 divisors (see below), whose sum is σ = 109596544. Its totient is φ = 72823104.

The previous prime is 90272323. The next prime is 90272333. The reversal of 90272329 is 92327209.

It is not a de Polignac number, because 90272329 - 2³ = 90272321 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90272294 and 90272303.

It is not an unprimeable number, because it can be changed into a prime (90272321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20289 + ... + 24334.

Almost surely, 2^90272329 is an apocalyptic number.

It is an amenable number.

90272329 is a deficient number, since it is larger than the sum of its proper divisors (19324215).

90272329 is a wasteful number, since it uses less digits than its factorization.

90272329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44664 (or 44647 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 90272329 is about 9501.1751378448. The cubic root of 90272329 is about 448.5920256167.

It can be divided in two parts, 90272 and 329, that added together give a square (90601 = 301²).

The spelling of 90272329 in words is "ninety million, two hundred seventy-two thousand, three hundred twenty-nine".