82722630 has 32 divisors (see below), whose sum is σ = 198876384. Its totient is φ = 22021376.

The previous prime is 82722623. The next prime is 82722631. The reversal of 82722630 is 3622728.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82722631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18274 + ... + 22346.

It is an arithmetic number, because the mean of its divisors is an integer number (6214887).

Almost surely, 2^82722630 is an apocalyptic number.

82722630 is an abundant number, since it is smaller than the sum of its proper divisors (116153754).

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

82722630 is a wasteful number, since it uses less digits than its factorization.

82722630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 82722630 is about 9095.1981836571. The cubic root of 82722630 is about 435.7206182261.

The spelling of 82722630 in words is "eighty-two million, seven hundred twenty-two thousand, six hundred thirty".