90828999 has 8 divisors (see below), whose sum is σ = 134561520. Its totient is φ = 60552648.

The previous prime is 90828989. The next prime is 90829007. The reversal of 90828999 is 99982809.

It is not a de Polignac number, because 90828999 - 2⁵ = 90828967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90828919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681992 + ... + 1682045.

It is an arithmetic number, because the mean of its divisors is an integer number (16820190).

Almost surely, 2^90828999 is an apocalyptic number.

90828999 is a deficient number, since it is larger than the sum of its proper divisors (43732521).

90828999 is a wasteful number, since it uses less digits than its factorization.

90828999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364046 (or 3364040 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 90828999 is about 9530.4249118284. The cubic root of 90828999 is about 449.5122270300.

It can be divided in two parts, 9082 and 8999, that added together give a palindrome (18081).

The spelling of 90828999 in words is "ninety million, eight hundred twenty-eight thousand, nine hundred ninety-nine".