90222715 has 16 divisors (see below), whose sum is σ = 118441440. Its totient is φ = 65432320.

The previous prime is 90222701. The next prime is 90222731. The reversal of 90222715 is 51722209.

It is not a de Polignac number, because 90222715 - 2¹¹ = 90220667 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 19287 + ... + 23503.

It is an arithmetic number, because the mean of its divisors is an integer number (7402590).

Almost surely, 2^90222715 is an apocalyptic number.

90222715 is a deficient number, since it is larger than the sum of its proper divisors (28218725).

90222715 is a wasteful number, since it uses less digits than its factorization.

90222715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 90222715 is about 9498.5638388127. The cubic root of 90222715 is about 448.5098279538.

The spelling of 90222715 in words is "ninety million, two hundred twenty-two thousand, seven hundred fifteen".