90829818 has 12 divisors (see below), whose sum is σ = 196797978. Its totient is φ = 30276600.

The previous prime is 90829813. The next prime is 90829831. The reversal of 90829818 is 81892809.

It can be written as a sum of positive squares in only one way, i.e., 60326289 + 30503529 = 7767^2 + 5523^2 .

It is not an unprimeable number, because it can be changed into a prime (90829811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2523033 + ... + 2523068.

Almost surely, 2^90829818 is an apocalyptic number.

90829818 is an abundant number, since it is smaller than the sum of its proper divisors (105968160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90829818 is a wasteful number, since it uses less digits than its factorization.

90829818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046109 (or 5046106 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 90829818 is about 9530.4678793856. The cubic root of 90829818 is about 449.5135781015.

The spelling of 90829818 in words is "ninety million, eight hundred twenty-nine thousand, eight hundred eighteen".