82777330 has 16 divisors (see below), whose sum is σ = 150174720. Its totient is φ = 32849712.

The previous prime is 82777309. The next prime is 82777363. The reversal of 82777330 is 3377728.

It is a self number, because there is not a number n which added to its sum of digits gives 82777330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31320 + ... + 33859.

It is an arithmetic number, because the mean of its divisors is an integer number (9385920).

Almost surely, 2^82777330 is an apocalyptic number.

82777330 is a deficient number, since it is larger than the sum of its proper divisors (67397390).

82777330 is a wasteful number, since it uses less digits than its factorization.

82777330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65313.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 82777330 is about 9098.2047679748. The cubic root of 82777330 is about 435.8166365562.

The spelling of 82777330 in words is "eighty-two million, seven hundred seventy-seven thousand, three hundred thirty".