82291412 has 24 divisors (see below), whose sum is σ = 165184320. Its totient is φ = 35138880.

The previous prime is 82291411. The next prime is 82291427. The reversal of 82291412 is 21419228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82291411) 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, 2639 + ... + 13097.

It is an arithmetic number, because the mean of its divisors is an integer number (6882680).

Almost surely, 2^82291412 is an apocalyptic number.

It is an amenable number.

82291412 is an abundant number, since it is smaller than the sum of its proper divisors (82892908).

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

82291412 is a wasteful number, since it uses less digits than its factorization.

82291412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751 (or 10749 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 82291412 is about 9071.4614037651. The cubic root of 82291412 is about 434.9621881081.

The spelling of 82291412 in words is "eighty-two million, two hundred ninety-one thousand, four hundred twelve".