90107680 has 48 divisors (see below), whose sum is σ = 229260024. Its totient is φ = 33269760.

The previous prime is 90107659. The next prime is 90107687. The reversal of 90107680 is 8670109.

It can be written as a sum of positive squares in 4 ways, for example, as 73753744 + 16353936 = 8588^2 + 4044^2 .

It is not an unprimeable number, because it can be changed into a prime (90107687) 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, 19581 + ... + 23740.

Almost surely, 2^90107680 is an apocalyptic number.

It is an amenable number.

90107680 is an abundant number, since it is smaller than the sum of its proper divisors (139152344).

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

90107680 is a wasteful number, since it uses less digits than its factorization.

90107680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43349 (or 43341 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 90107680 is about 9492.5065183017. The cubic root of 90107680 is about 448.3191284853.

Adding to 90107680 its reverse (8670109), we get a palindrome (98777789).

The spelling of 90107680 in words is "ninety million, one hundred seven thousand, six hundred eighty".