87163479 has 32 divisors (see below), whose sum is σ = 139991040. Its totient is φ = 53282016.

The previous prime is 87163463. The next prime is 87163493. The reversal of 87163479 is 97436178.

87163479 is a `hidden beast` number, since 8 + 7 + 1 + 634 + 7 + 9 = 666.

It is not a de Polignac number, because 87163479 - 2⁴ = 87163463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87163459) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 57874 + ... + 59360.

It is an arithmetic number, because the mean of its divisors is an integer number (4374720).

Almost surely, 2^87163479 is an apocalyptic number.

87163479 is a deficient number, since it is larger than the sum of its proper divisors (52827561).

87163479 is a wasteful number, since it uses less digits than its factorization.

87163479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1670 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 87163479 is about 9336.1383344507. The cubic root of 87163479 is about 443.3821299798.

The spelling of 87163479 in words is "eighty-seven million, one hundred sixty-three thousand, four hundred seventy-nine".