83937140 has 24 divisors (see below), whose sum is σ = 201449472. Its totient is φ = 28778400.

The previous prime is 83937137. The next prime is 83937149. The reversal of 83937140 is 4173938.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 83937140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83937149) 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 7 ways as a sum of consecutive naturals, for example, 299636 + ... + 299915.

It is an arithmetic number, because the mean of its divisors is an integer number (8393728).

Almost surely, 2^83937140 is an apocalyptic number.

It is an amenable number.

83937140 is an abundant number, since it is smaller than the sum of its proper divisors (117512332).

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

83937140 is a wasteful number, since it uses less digits than its factorization.

83937140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599567 (or 599565 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 83937140 is about 9161.7214539627. The cubic root of 83937140 is about 437.8426420551.

The spelling of 83937140 in words is "eighty-three million, nine hundred thirty-seven thousand, one hundred forty".