83312493 has 24 divisors (see below), whose sum is σ = 125420064. Its totient is φ = 49119840.

The previous prime is 83312443. The next prime is 83312497. The reversal of 83312493 is 39421338.

It is a happy number.

It is not a de Polignac number, because 83312493 - 2⁶ = 83312429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83312497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10330 + ... + 16532.

It is an arithmetic number, because the mean of its divisors is an integer number (5225836).

Almost surely, 2^83312493 is an apocalyptic number.

It is an amenable number.

83312493 is a deficient number, since it is larger than the sum of its proper divisors (42107571).

83312493 is a wasteful number, since it uses less digits than its factorization.

83312493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265 (or 6254 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 83312493 is about 9127.5677483106. The cubic root of 83312493 is about 436.7538179163.

The spelling of 83312493 in words is "eighty-three million, three hundred twelve thousand, four hundred ninety-three".