82722237 has 16 divisors (see below), whose sum is σ = 123946368. Its totient is φ = 48692160.

The previous prime is 82722217. The next prime is 82722247. The reversal of 82722237 is 73222728.

It is not a de Polignac number, because 82722237 - 2⁶ = 82722173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82722198 and 82722207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82722217) 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, 45214 + ... + 47007.

It is an arithmetic number, because the mean of its divisors is an integer number (7746648).

Almost surely, 2^82722237 is an apocalyptic number.

It is an amenable number.

82722237 is a deficient number, since it is larger than the sum of its proper divisors (41224131).

82722237 is a wasteful number, since it uses less digits than its factorization.

82722237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92260.

The product of its digits is 18816, while the sum is 33.

The square root of 82722237 is about 9095.1765788246. The cubic root of 82722237 is about 435.7199282155.

The spelling of 82722237 in words is "eighty-two million, seven hundred twenty-two thousand, two hundred thirty-seven".