83382779 has 4 divisors (see below), whose sum is σ = 83494560. Its totient is φ = 83271000.

The previous prime is 83382757. The next prime is 83382781. The reversal of 83382779 is 97728338.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83382779 - 2²⁴ = 66605563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83382709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54764 + ... + 56265.

It is an arithmetic number, because the mean of its divisors is an integer number (20873640).

Almost surely, 2^83382779 is an apocalyptic number.

83382779 is a deficient number, since it is larger than the sum of its proper divisors (111781).

83382779 is a wasteful number, since it uses less digits than its factorization.

83382779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111780.

The product of its digits is 508032, while the sum is 47.

The square root of 83382779 is about 9131.4171408385. The cubic root of 83382779 is about 436.8766048244.

The spelling of 83382779 in words is "eighty-three million, three hundred eighty-two thousand, seven hundred seventy-nine".