90619680 has 48 divisors (see below), whose sum is σ = 285453504. Its totient is φ = 24165120.

The previous prime is 90619679. The next prime is 90619699. The reversal of 90619680 is 8691609.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93916 + ... + 94875.

It is an arithmetic number, because the mean of its divisors is an integer number (5946948).

Almost surely, 2^90619680 is an apocalyptic number.

It is an amenable number.

90619680 is an abundant number, since it is smaller than the sum of its proper divisors (194833824).

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

90619680 is a wasteful number, since it uses less digits than its factorization.

90619680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188809 (or 188801 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 90619680 is about 9519.4369581399. The cubic root of 90619680 is about 449.1666552313.

The spelling of 90619680 in words is "ninety million, six hundred nineteen thousand, six hundred eighty".