83320479 has 18 divisors (see below), whose sum is σ = 132289248. Its totient is φ = 50496600.

The previous prime is 83320469. The next prime is 83320493. The reversal of 83320479 is 97402338.

It is not a de Polignac number, because 83320479 - 2⁷ = 83320351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83320409) 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 17 ways as a sum of consecutive naturals, for example, 37167 + ... + 39344.

Almost surely, 2^83320479 is an apocalyptic number.

83320479 is a deficient number, since it is larger than the sum of its proper divisors (48968769).

83320479 is a wasteful number, since it uses less digits than its factorization.

83320479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76539 (or 76525 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 83320479 is about 9128.0052037671. The cubic root of 83320479 is about 436.7677726243.

It can be divided in two parts, 833 and 20479, that added together give a palindrome (21312).

The spelling of 83320479 in words is "eighty-three million, three hundred twenty thousand, four hundred seventy-nine".