83366779 has 8 divisors (see below), whose sum is σ = 84213360. Its totient is φ = 82524000.

The previous prime is 83366761. The next prime is 83366783. The reversal of 83366779 is 97766338.

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 83366779 - 2⁹ = 83366267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83366749) 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, 63429 + ... + 64729.

It is an arithmetic number, because the mean of its divisors is an integer number (10526670).

Almost surely, 2^83366779 is an apocalyptic number.

83366779 is a deficient number, since it is larger than the sum of its proper divisors (846581).

83366779 is a wasteful number, since it uses less digits than its factorization.

83366779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901.

The product of its digits is 1143072, while the sum is 49.

The square root of 83366779 is about 9130.5410025912. The cubic root of 83366779 is about 436.8486595144.

The spelling of 83366779 in words is "eighty-three million, three hundred sixty-six thousand, seven hundred seventy-nine".