82107942 has 16 divisors (see below), whose sum is σ = 187675392. Its totient is φ = 23459400.

The previous prime is 82107899. The next prime is 82107959. The reversal of 82107942 is 24970128.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977434 + ... + 977517.

It is an arithmetic number, because the mean of its divisors is an integer number (11729712).

Almost surely, 2^82107942 is an apocalyptic number.

82107942 is an abundant number, since it is smaller than the sum of its proper divisors (105567450).

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

82107942 is a wasteful number, since it uses less digits than its factorization.

82107942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954963.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 82107942 is about 9061.3432779031. The cubic root of 82107942 is about 434.6386958940.

It can be divided in two parts, 821079 and 42, that added together give a triangular number (821121 = T₁₂₈₁).

The spelling of 82107942 in words is "eighty-two million, one hundred seven thousand, nine hundred forty-two".