87874532 has 6 divisors (see below), whose sum is σ = 153780438. Its totient is φ = 43937264.

The previous prime is 87874517. The next prime is 87874543. The reversal of 87874532 is 23547878.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 2238016 = 9254^2 + 1496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10984313 + ... + 10984320.

It is an arithmetic number, because the mean of its divisors is an integer number (25630073).

Almost surely, 2^87874532 is an apocalyptic number.

It is an amenable number.

87874532 is a deficient number, since it is larger than the sum of its proper divisors (65905906).

87874532 is a wasteful number, since it uses less digits than its factorization.

87874532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21968637 (or 21968635 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 87874532 is about 9374.1416673741. The cubic root of 87874532 is about 444.5845248910.

The spelling of 87874532 in words is "eighty-seven million, eight hundred seventy-four thousand, five hundred thirty-two".