87293286 has 24 divisors (see below), whose sum is σ = 194248704. Its totient is φ = 28311120.

The previous prime is 87293281. The next prime is 87293287. The reversal of 87293286 is 68239278.

87293286 is a `hidden beast` number, since 87 + 293 + 286 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87293281) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 64870 + ... + 66201.

It is an arithmetic number, because the mean of its divisors is an integer number (8093696).

Almost surely, 2^87293286 is an apocalyptic number.

87293286 is an abundant number, since it is smaller than the sum of its proper divisors (106955418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87293286 is a wasteful number, since it uses less digits than its factorization.

87293286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131116 (or 131113 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 87293286 is about 9343.0876052834. The cubic root of 87293286 is about 443.6021210352.

The spelling of 87293286 in words is "eighty-seven million, two hundred ninety-three thousand, two hundred eighty-six".