82730070 has 24 divisors (see below), whose sum is σ = 215098416. Its totient is φ = 22061328.

The previous prime is 82730033. The next prime is 82730083. The reversal of 82730070 is 7003728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459522 + ... + 459701.

It is an arithmetic number, because the mean of its divisors is an integer number (8962434).

Almost surely, 2^82730070 is an apocalyptic number.

82730070 is an abundant number, since it is smaller than the sum of its proper divisors (132368346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82730070 is a wasteful number, since it uses less digits than its factorization.

82730070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919236 (or 919233 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 82730070 is about 9095.6071814915. The cubic root of 82730070 is about 435.7336806099.

Adding to 82730070 its reverse (7003728), we get a palindrome (89733798).

The spelling of 82730070 in words is "eighty-two million, seven hundred thirty thousand, seventy".