83130870 has 32 divisors (see below), whose sum is σ = 199755360. Its totient is φ = 22141440.

The previous prime is 83130869. The next prime is 83130899. The reversal of 83130870 is 7803138.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43740 + ... + 45600.

It is an arithmetic number, because the mean of its divisors is an integer number (6242355).

Almost surely, 2^83130870 is an apocalyptic number.

83130870 is an abundant number, since it is smaller than the sum of its proper divisors (116624490).

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

83130870 is a wasteful number, since it uses less digits than its factorization.

83130870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 83130870 is about 9117.6131745101. The cubic root of 83130870 is about 436.4362094809.

The spelling of 83130870 in words is "eighty-three million, one hundred thirty thousand, eight hundred seventy".