83390399 has 8 divisors (see below), whose sum is σ = 86550960. Its totient is φ = 80248896.

The previous prime is 83390381. The next prime is 83390407. The reversal of 83390399 is 99309338.

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

It is a cyclic number.

It is not a de Polignac number, because 83390399 - 2¹⁶ = 83324863 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 (83390369) 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 7 ways as a sum of consecutive naturals, for example, 4484 + ... + 13670.

It is an arithmetic number, because the mean of its divisors is an integer number (10818870).

Almost surely, 2^83390399 is an apocalyptic number.

83390399 is a deficient number, since it is larger than the sum of its proper divisors (3160561).

83390399 is a wasteful number, since it uses less digits than its factorization.

83390399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 83390399 is about 9131.8343721292. The cubic root of 83390399 is about 436.8899125216.

The spelling of 83390399 in words is "eighty-three million, three hundred ninety thousand, three hundred ninety-nine".