83155479 has 32 divisors (see below), whose sum is σ = 123863040. Its totient is φ = 49202400.

The previous prime is 83155477. The next prime is 83155489. The reversal of 83155479 is 97455138.

It is not a de Polignac number, because 83155479 - 2¹ = 83155477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83155479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83155477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435274 + ... + 435464.

It is an arithmetic number, because the mean of its divisors is an integer number (3870720).

Almost surely, 2^83155479 is an apocalyptic number.

83155479 is a deficient number, since it is larger than the sum of its proper divisors (40707561).

83155479 is a wasteful number, since it uses less digits than its factorization.

83155479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its digits is 151200, while the sum is 42.

The square root of 83155479 is about 9118.9626054722. The cubic root of 83155479 is about 436.4792708974.

The spelling of 83155479 in words is "eighty-three million, one hundred fifty-five thousand, four hundred seventy-nine".