82776070 has 16 divisors (see below), whose sum is σ = 160458480. Its totient is φ = 30563424.

The previous prime is 82776061. The next prime is 82776073. The reversal of 82776070 is 7067728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82776073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318240 + ... + 318499.

It is an arithmetic number, because the mean of its divisors is an integer number (10028655).

Almost surely, 2^82776070 is an apocalyptic number.

82776070 is a deficient number, since it is larger than the sum of its proper divisors (77682410).

82776070 is a wasteful number, since it uses less digits than its factorization.

82776070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636759.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 82776070 is about 9098.1355232817. The cubic root of 82776070 is about 435.8144252755.

The spelling of 82776070 in words is "eighty-two million, seven hundred seventy-six thousand, seventy".