82331772 has 24 divisors (see below), whose sum is σ = 196794192. Its totient is φ = 26774400.

The previous prime is 82331759. The next prime is 82331773. The reversal of 82331772 is 27713328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82331773) 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, 83179 + ... + 84162.

It is an arithmetic number, because the mean of its divisors is an integer number (8199758).

Almost surely, 2^82331772 is an apocalyptic number.

82331772 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

82331772 is an abundant number, since it is smaller than the sum of its proper divisors (114462420).

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

82331772 is a wasteful number, since it uses less digits than its factorization.

82331772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167389 (or 167387 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 82331772 is about 9073.6856899498. The cubic root of 82331772 is about 435.0332858662.

The spelling of 82331772 in words is "eighty-two million, three hundred thirty-one thousand, seven hundred seventy-two".