87212614 has 4 divisors (see below), whose sum is σ = 130818924. Its totient is φ = 43606306.

The previous prime is 87212581. The next prime is 87212639. The reversal of 87212614 is 41621278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41621278 = 2 ⋅20810639.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21803152 + ... + 21803155.

It is an arithmetic number, because the mean of its divisors is an integer number (32704731).

Almost surely, 2^87212614 is an apocalyptic number.

87212614 is a deficient number, since it is larger than the sum of its proper divisors (43606310).

87212614 is a wasteful number, since it uses less digits than its factorization.

87212614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43606309.

The product of its digits is 5376, while the sum is 31.

The square root of 87212614 is about 9338.7694050126. The cubic root of 87212614 is about 443.4654274376.

The spelling of 87212614 in words is "eighty-seven million, two hundred twelve thousand, six hundred fourteen".