90684318 has 8 divisors (see below), whose sum is σ = 181368648. Its totient is φ = 30228104.

The previous prime is 90684313. The next prime is 90684343. The reversal of 90684318 is 81348609.

It is a sphenic number, since it is the product of 3 distinct primes.

90684318 is an admirable number.

It is a super-2 number, since 2×90684318² = 16447291062250248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90684311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7557021 + ... + 7557032.

It is an arithmetic number, because the mean of its divisors is an integer number (22671081).

Almost surely, 2^90684318 is an apocalyptic number.

90684318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90684318 is a wasteful number, since it uses less digits than its factorization.

90684318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15114058.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 90684318 is about 9522.8314066773. The cubic root of 90684318 is about 449.2734250263.

The spelling of 90684318 in words is "ninety million, six hundred eighty-four thousand, three hundred eighteen".