90007715 has 8 divisors (see below), whose sum is σ = 123439200. Its totient is φ = 61719552.

The previous prime is 90007703. The next prime is 90007721. The reversal of 90007715 is 51770009.

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

It is a cyclic number.

It is not a de Polignac number, because 90007715 - 2¹⁶ = 89942179 is a prime.

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, 1285790 + ... + 1285859.

It is an arithmetic number, because the mean of its divisors is an integer number (15429900).

Almost surely, 2^90007715 is an apocalyptic number.

90007715 is a deficient number, since it is larger than the sum of its proper divisors (33431485).

90007715 is a wasteful number, since it uses less digits than its factorization.

90007715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571661.

The product of its (nonzero) digits is 2205, while the sum is 29.

The square root of 90007715 is about 9487.2395879940. The cubic root of 90007715 is about 448.1532794890.

The spelling of 90007715 in words is "ninety million, seven thousand, seven hundred fifteen".