90687696 has 40 divisors (see below), whose sum is σ = 255575904. Its totient is φ = 27480960.

The previous prime is 90687691. The next prime is 90687721. The reversal of 90687696 is 69678609.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90687691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85351 + ... + 86406.

Almost surely, 2^90687696 is an apocalyptic number.

It is an amenable number.

90687696 is an abundant number, since it is smaller than the sum of its proper divisors (164888208).

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

90687696 is a wasteful number, since it uses less digits than its factorization.

90687696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171779 (or 171773 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 90687696 is about 9523.0087682413. The cubic root of 90687696 is about 449.2790034505.

It can be divided in two parts, 90 and 687696, that added together give a palindrome (687786).

The spelling of 90687696 in words is "ninety million, six hundred eighty-seven thousand, six hundred ninety-six".