82790074 has 4 divisors (see below), whose sum is σ = 124185114. Its totient is φ = 41395036.

The previous prime is 82790063. The next prime is 82790089. The reversal of 82790074 is 47009728.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 10284849 = 8515^2 + 3207^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20697517 + ... + 20697520.

Almost surely, 2^82790074 is an apocalyptic number.

82790074 is a deficient number, since it is larger than the sum of its proper divisors (41395040).

82790074 is a wasteful number, since it uses less digits than its factorization.

82790074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41395039.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 82790074 is about 9098.9050989666. The cubic root of 82790074 is about 435.8390008204.

The spelling of 82790074 in words is "eighty-two million, seven hundred ninety thousand, seventy-four".