82790481 has 16 divisors (see below), whose sum is σ = 112582080. Its totient is φ = 54102720.

The previous prime is 82790479. The next prime is 82790483. The reversal of 82790481 is 18409728.

It is an interprime number because it is at equal distance from previous prime (82790479) and next prime (82790483).

It is not a de Polignac number, because 82790481 - 2¹ = 82790479 is a prime.

It is a super-2 number, since 2×82790481² = 13708527488422722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82790483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70606 + ... + 71768.

It is an arithmetic number, because the mean of its divisors is an integer number (7036380).

Almost surely, 2^82790481 is an apocalyptic number.

It is an amenable number.

82790481 is a deficient number, since it is larger than the sum of its proper divisors (29791599).

82790481 is a wasteful number, since it uses less digits than its factorization.

82790481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 82790481 is about 9098.9274642674. The cubic root of 82790481 is about 435.8397150211.

The spelling of 82790481 in words is "eighty-two million, seven hundred ninety thousand, four hundred eighty-one".