82767490 has 16 divisors (see below), whose sum is σ = 160441848. Its totient is φ = 30560256.

The previous prime is 82767467. The next prime is 82767491. The reversal of 82767490 is 9476728.

It can be written as a sum of positive squares in 4 ways, for example, as 70913241 + 11854249 = 8421^2 + 3443^2 .

It is not an unprimeable number, because it can be changed into a prime (82767491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318207 + ... + 318466.

Almost surely, 2^82767490 is an apocalyptic number.

82767490 is a deficient number, since it is larger than the sum of its proper divisors (77674358).

82767490 is a wasteful number, since it uses less digits than its factorization.

82767490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636693.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 82767490 is about 9097.6639858812. The cubic root of 82767490 is about 435.7993669099.

The spelling of 82767490 in words is "eighty-two million, seven hundred sixty-seven thousand, four hundred ninety".