82939412 has 6 divisors (see below), whose sum is σ = 145143978. Its totient is φ = 41469704.

The previous prime is 82939399. The next prime is 82939421. The reversal of 82939412 is 21493928.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 28238596 = 7396^2 + 5314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10367423 + ... + 10367430.

It is an arithmetic number, because the mean of its divisors is an integer number (24190663).

Almost surely, 2^82939412 is an apocalyptic number.

It is an amenable number.

82939412 is a deficient number, since it is larger than the sum of its proper divisors (62204566).

82939412 is a wasteful number, since it uses less digits than its factorization.

82939412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20734857 (or 20734855 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 82939412 is about 9107.1077736019. The cubic root of 82939412 is about 436.1009010924.

The spelling of 82939412 in words is "eighty-two million, nine hundred thirty-nine thousand, four hundred twelve".