87242852 has 6 divisors (see below), whose sum is σ = 152674998. Its totient is φ = 43621424.

The previous prime is 87242849. The next prime is 87242863. The reversal of 87242852 is 25824278.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 26152996 = 7816^2 + 5114^2 .

It is a super-2 number, since 2×87242852² = 15222630450187808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10905353 + ... + 10905360.

It is an arithmetic number, because the mean of its divisors is an integer number (25445833).

Almost surely, 2^87242852 is an apocalyptic number.

It is an amenable number.

87242852 is a deficient number, since it is larger than the sum of its proper divisors (65432146).

87242852 is a wasteful number, since it uses less digits than its factorization.

87242852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21810717 (or 21810715 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 87242852 is about 9340.3882146301. The cubic root of 87242852 is about 443.5166736871.

The spelling of 87242852 in words is "eighty-seven million, two hundred forty-two thousand, eight hundred fifty-two".