82388878 has 32 divisors (see below), whose sum is σ = 145861632. Its totient is φ = 34408800.

The previous prime is 82388833. The next prime is 82388909. The reversal of 82388878 is 87888328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76975 + ... + 78037.

It is an arithmetic number, because the mean of its divisors is an integer number (4558176).

Almost surely, 2^82388878 is an apocalyptic number.

82388878 is a deficient number, since it is larger than the sum of its proper divisors (63472754).

82388878 is a wasteful number, since it uses less digits than its factorization.

82388878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360.

The product of its digits is 1376256, while the sum is 52.

The square root of 82388878 is about 9076.8319363091. The cubic root of 82388878 is about 435.1338435191.

The spelling of 82388878 in words is "eighty-two million, three hundred eighty-eight thousand, eight hundred seventy-eight".