87822572 has 12 divisors (see below), whose sum is σ = 153811056. Its totient is φ = 43876560.

The previous prime is 87822557. The next prime is 87822587. The reversal of 87822572 is 27522878.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87822557) and next prime (87822587).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2504 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (12817588).

Almost surely, 2^87822572 is an apocalyptic number.

It is an amenable number.

87822572 is a deficient number, since it is larger than the sum of its proper divisors (65988484).

87822572 is a wasteful number, since it uses less digits than its factorization.

87822572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17368 (or 17366 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 87822572 is about 9371.3698038227. The cubic root of 87822572 is about 444.4968803596.

The spelling of 87822572 in words is "eighty-seven million, eight hundred twenty-two thousand, five hundred seventy-two".