82790078 has 32 divisors (see below), whose sum is σ = 144460800. Its totient is φ = 34854624.

The previous prime is 82790063. The next prime is 82790089. The reversal of 82790078 is 87009728.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346283 + ... + 346521.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^82790078 is an apocalyptic number.

82790078 is a deficient number, since it is larger than the sum of its proper divisors (61670722).

82790078 is a wasteful number, since it uses less digits than its factorization.

82790078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 82790078 is about 9098.9053187732. The cubic root of 82790078 is about 435.8390078396.

The spelling of 82790078 in words is "eighty-two million, seven hundred ninety thousand, seventy-eight".