83942399 has 8 divisors (see below), whose sum is σ = 88826880. Its totient is φ = 79104600.

The previous prime is 83942359. The next prime is 83942401. The reversal of 83942399 is 99324938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83942399 - 2⁸ = 83942143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83942359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7937 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (11103360).

Almost surely, 2^83942399 is an apocalyptic number.

83942399 is a deficient number, since it is larger than the sum of its proper divisors (4884481).

83942399 is a wasteful number, since it uses less digits than its factorization.

83942399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23341.

The product of its digits is 419904, while the sum is 47.

The square root of 83942399 is about 9162.0084588479. The cubic root of 83942399 is about 437.8517860660.

The spelling of 83942399 in words is "eighty-three million, nine hundred forty-two thousand, three hundred ninety-nine".