83078849 has 16 divisors (see below), whose sum is σ = 101222400. Its totient is φ = 66600144.

The previous prime is 83078839. The next prime is 83078893. The reversal of 83078849 is 94887038.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83078849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83078839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6554 + ... + 14460.

It is an arithmetic number, because the mean of its divisors is an integer number (6326400).

Almost surely, 2^83078849 is an apocalyptic number.

It is an amenable number.

83078849 is a deficient number, since it is larger than the sum of its proper divisors (18143551).

83078849 is a wasteful number, since it uses less digits than its factorization.

83078849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 83078849 is about 9114.7599529554. The cubic root of 83078849 is about 436.3451539139.

The spelling of 83078849 in words is "eighty-three million, seventy-eight thousand, eight hundred forty-nine".