82878132 has 12 divisors (see below), whose sum is σ = 193382336. Its totient is φ = 27626040.

The previous prime is 82878101. The next prime is 82878137. The reversal of 82878132 is 23187828.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82878137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3453244 + ... + 3453267.

Almost surely, 2^82878132 is an apocalyptic number.

It is an amenable number.

82878132 is an abundant number, since it is smaller than the sum of its proper divisors (110504204).

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

82878132 is a wasteful number, since it uses less digits than its factorization.

82878132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906518 (or 6906516 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 82878132 is about 9103.7427468047. The cubic root of 82878132 is about 435.9934698682.

The spelling of 82878132 in words is "eighty-two million, eight hundred seventy-eight thousand, one hundred thirty-two".