83868870 has 32 divisors (see below), whose sum is σ = 208228320. Its totient is φ = 21593600.

The previous prime is 83868823. The next prime is 83868887. The reversal of 83868870 is 7886838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47331 + ... + 49070.

It is an arithmetic number, because the mean of its divisors is an integer number (6507135).

Almost surely, 2^83868870 is an apocalyptic number.

83868870 is an abundant number, since it is smaller than the sum of its proper divisors (124359450).

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

83868870 is a wasteful number, since it uses less digits than its factorization.

83868870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96440.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 83868870 is about 9157.9948678736. The cubic root of 83868870 is about 437.7239038942.

The spelling of 83868870 in words is "eighty-three million, eight hundred sixty-eight thousand, eight hundred seventy".