82770164 has 6 divisors (see below), whose sum is σ = 144847794. Its totient is φ = 41385080.

The previous prime is 82770151. The next prime is 82770203. The reversal of 82770164 is 46107728.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70224400 + 12545764 = 8380^2 + 3542^2 .

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 as a sum of consecutive naturals, namely, 10346267 + ... + 10346274.

It is an arithmetic number, because the mean of its divisors is an integer number (24141299).

Almost surely, 2^82770164 is an apocalyptic number.

It is an amenable number.

82770164 is a deficient number, since it is larger than the sum of its proper divisors (62077630).

82770164 is a wasteful number, since it uses less digits than its factorization.

82770164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20692545 (or 20692543 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 82770164 is about 9097.8109454967. The cubic root of 82770164 is about 435.8040600366.

The spelling of 82770164 in words is "eighty-two million, seven hundred seventy thousand, one hundred sixty-four".