82790072 has 8 divisors (see below), whose sum is σ = 155231400. Its totient is φ = 41395032.

The previous prime is 82790063. The next prime is 82790089. The reversal of 82790072 is 27009728.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5174372 + ... + 5174387.

It is an arithmetic number, because the mean of its divisors is an integer number (19403925).

Almost surely, 2^82790072 is an apocalyptic number.

It is an amenable number.

82790072 is a deficient number, since it is larger than the sum of its proper divisors (72441328).

82790072 is a wasteful number, since it uses less digits than its factorization.

82790072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348765 (or 10348761 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 82790072 is about 9098.9049890632. The cubic root of 82790072 is about 435.8389973108.

The spelling of 82790072 in words is "eighty-two million, seven hundred ninety thousand, seventy-two".