82509722 has 16 divisors (see below), whose sum is σ = 127256832. Its totient is φ = 40102800.

The previous prime is 82509697. The next prime is 82509737. The reversal of 82509722 is 22790528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11288 + ... + 17100.

It is an arithmetic number, because the mean of its divisors is an integer number (7953552).

Almost surely, 2^82509722 is an apocalyptic number.

82509722 is a deficient number, since it is larger than the sum of its proper divisors (44747110).

82509722 is a wasteful number, since it uses less digits than its factorization.

82509722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 82509722 is about 9083.4862250129. The cubic root of 82509722 is about 435.3464839770.

The spelling of 82509722 in words is "eighty-two million, five hundred nine thousand, seven hundred twenty-two".