87113870 has 8 divisors (see below), whose sum is σ = 156804984. Its totient is φ = 34845544.

The previous prime is 87113861. The next prime is 87113891. The reversal of 87113870 is 7831178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87113870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355684 + ... + 4355703.

It is an arithmetic number, because the mean of its divisors is an integer number (19600623).

Almost surely, 2^87113870 is an apocalyptic number.

87113870 is a deficient number, since it is larger than the sum of its proper divisors (69691114).

87113870 is a wasteful number, since it uses less digits than its factorization.

87113870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711394.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 87113870 is about 9333.4811297822. The cubic root of 87113870 is about 443.2979971962.

It can be divided in two parts, 871 and 13870, that added together give a palindrome (14741).

The spelling of 87113870 in words is "eighty-seven million, one hundred thirteen thousand, eight hundred seventy".