83981201 has 16 divisors (see below), whose sum is σ = 89280000. Its totient is φ = 78883200.

The previous prime is 83981189. The next prime is 83981221. The reversal of 83981201 is 10218938.

It is a cyclic number.

It is not a de Polignac number, because 83981201 - 2²² = 79786897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83981221) 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 15 ways as a sum of consecutive naturals, for example, 168050 + ... + 168548.

It is an arithmetic number, because the mean of its divisors is an integer number (5580000).

Almost surely, 2^83981201 is an apocalyptic number.

It is an amenable number.

83981201 is a deficient number, since it is larger than the sum of its proper divisors (5298799).

83981201 is a wasteful number, since it uses less digits than its factorization.

83981201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 83981201 is about 9164.1257629956. The cubic root of 83981201 is about 437.9192406861.

The spelling of 83981201 in words is "eighty-three million, nine hundred eighty-one thousand, two hundred one".