83972910 has 32 divisors (see below), whose sum is σ = 230326272. Its totient is φ = 19193760.

The previous prime is 83972891. The next prime is 83972927. The reversal of 83972910 is 1927938.

It is a super-2 number, since 2×83972910² = 14102899227736200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 199726 + ... + 200145.

It is an arithmetic number, because the mean of its divisors is an integer number (7197696).

Almost surely, 2^83972910 is an apocalyptic number.

83972910 is an abundant number, since it is smaller than the sum of its proper divisors (146353362).

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

83972910 is a wasteful number, since it uses less digits than its factorization.

83972910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399888.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 83972910 is about 9163.6733900767. The cubic root of 83972910 is about 437.9048290960.

The spelling of 83972910 in words is "eighty-three million, nine hundred seventy-two thousand, nine hundred ten".