87281092 has 6 divisors (see below), whose sum is σ = 152741918. Its totient is φ = 43640544.

The previous prime is 87281083. The next prime is 87281107. The reversal of 87281092 is 29018278.

It can be written as a sum of positive squares in only one way, i.e., 49900096 + 37380996 = 7064^2 + 6114^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10910133 + ... + 10910140.

Almost surely, 2^87281092 is an apocalyptic number.

It is an amenable number.

87281092 is a deficient number, since it is larger than the sum of its proper divisors (65460826).

87281092 is a wasteful number, since it uses less digits than its factorization.

87281092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820277 (or 21820275 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 87281092 is about 9342.4350144917. The cubic root of 87281092 is about 443.5814644784.

The spelling of 87281092 in words is "eighty-seven million, two hundred eighty-one thousand, ninety-two".