87022492 has 12 divisors (see below), whose sum is σ = 152870256. Its totient is φ = 43345280.

The previous prime is 87022469. The next prime is 87022511. The reversal of 87022492 is 29422078.

It is a super-2 number, since 2×87022492² = 15145828227780128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40309 + ... + 42412.

It is an arithmetic number, because the mean of its divisors is an integer number (12739188).

Almost surely, 2^87022492 is an apocalyptic number.

It is an amenable number.

87022492 is a deficient number, since it is larger than the sum of its proper divisors (65847764).

87022492 is a wasteful number, since it uses less digits than its factorization.

87022492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82988 (or 82986 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 87022492 is about 9328.5846729287. The cubic root of 87022492 is about 443.1429439838.

It can be divided in two parts, 8 and 7022492, that added together give a square (7022500 = 2650²).

The spelling of 87022492 in words is "eighty-seven million, twenty-two thousand, four hundred ninety-two".