87212476 has 12 divisors (see below), whose sum is σ = 164362072. Its totient is φ = 40251888.

The previous prime is 87212467. The next prime is 87212513. The reversal of 87212476 is 67421278.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838530 + ... + 838633.

Almost surely, 2^87212476 is an apocalyptic number.

It is an amenable number.

87212476 is a deficient number, since it is larger than the sum of its proper divisors (77149596).

87212476 is a wasteful number, since it uses less digits than its factorization.

87212476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677180 (or 1677178 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 87212476 is about 9338.7620164559. The cubic root of 87212476 is about 443.4651935331.

The spelling of 87212476 in words is "eighty-seven million, two hundred twelve thousand, four hundred seventy-six".