82772379 has 24 divisors (see below), whose sum is σ = 128241360. Its totient is φ = 51285312.

The previous prime is 82772359. The next prime is 82772383. The reversal of 82772379 is 97327728.

82772379 is a `hidden beast` number, since 8 + 277 + 2 + 379 = 666.

It is not a de Polignac number, because 82772379 - 2⁷ = 82772251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82772359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4497 + ... + 13629.

It is an arithmetic number, because the mean of its divisors is an integer number (5343390).

Almost surely, 2^82772379 is an apocalyptic number.

82772379 is a deficient number, since it is larger than the sum of its proper divisors (45468981).

82772379 is a wasteful number, since it uses less digits than its factorization.

82772379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211 (or 9208 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 82772379 is about 9097.9326772625. The cubic root of 82772379 is about 435.8079474978.

The spelling of 82772379 in words is "eighty-two million, seven hundred seventy-two thousand, three hundred seventy-nine".