90947968 has 16 divisors (see below), whose sum is σ = 181185660. Its totient is φ = 45473920.

The previous prime is 90947959. The next prime is 90948001. The reversal of 90947968 is 86974909.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355138 + ... + 355393.

Almost surely, 2^90947968 is an apocalyptic number.

It is an amenable number.

90947968 is a deficient number, since it is larger than the sum of its proper divisors (90237692).

90947968 is an equidigital number, since it uses as much as digits as its factorization.

90947968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710545 (or 710533 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 90947968 is about 9536.6644063844. The cubic root of 90947968 is about 449.7084003849.

The spelling of 90947968 in words is "ninety million, nine hundred forty-seven thousand, nine hundred sixty-eight".