90715974 has 8 divisors (see below), whose sum is σ = 181431960. Its totient is φ = 30238656.

The previous prime is 90715957. The next prime is 90715993. The reversal of 90715974 is 47951709.

It is a happy number.

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

90715974 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7559659 + ... + 7559670.

It is an arithmetic number, because the mean of its divisors is an integer number (22678995).

Almost surely, 2^90715974 is an apocalyptic number.

90715974 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.

90715974 is a wasteful number, since it uses less digits than its factorization.

90715974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15119334.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 90715974 is about 9524.4933723532. The cubic root of 90715974 is about 449.3256962652.

The spelling of 90715974 in words is "ninety million, seven hundred fifteen thousand, nine hundred seventy-four".