83120700 has 72 divisors (see below), whose sum is σ = 259007728. Its totient is φ = 20459520.

The previous prime is 83120683. The next prime is 83120711. The reversal of 83120700 is 702138.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6757 + ... + 14556.

Almost surely, 2^83120700 is an apocalyptic number.

It is an amenable number.

83120700 is an abundant number, since it is smaller than the sum of its proper divisors (175887028).

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

83120700 is a wasteful number, since it uses less digits than its factorization.

83120700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343 (or 21336 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 83120700 is about 9117.0554457018. The cubic root of 83120700 is about 436.4184112901.

Adding to 83120700 its reverse (702138), we get a palindrome (83822838).

The spelling of 83120700 in words is "eighty-three million, one hundred twenty thousand, seven hundred".