82778350 has 24 divisors (see below), whose sum is σ = 156083760. Its totient is φ = 32656320.

The previous prime is 82778347. The next prime is 82778363. The reversal of 82778350 is 5387728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7690 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (6503490).

Almost surely, 2^82778350 is an apocalyptic number.

82778350 is a deficient number, since it is larger than the sum of its proper divisors (73305410).

82778350 is a wasteful number, since it uses less digits than its factorization.

82778350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764 (or 22759 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 82778350 is about 9098.2608228166. The cubic root of 82778350 is about 435.8184266242.

The spelling of 82778350 in words is "eighty-two million, seven hundred seventy-eight thousand, three hundred fifty".