82138826 has 32 divisors (see below), whose sum is σ = 157368960. Its totient is φ = 31219200.

The previous prime is 82138811. The next prime is 82138831. The reversal of 82138826 is 62883128.

It is a self number, because there is not a number n which added to its sum of digits gives 82138826.

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, 191 + ... + 12818.

It is an arithmetic number, because the mean of its divisors is an integer number (4917780).

Almost surely, 2^82138826 is an apocalyptic number.

82138826 is a deficient number, since it is larger than the sum of its proper divisors (75230134).

82138826 is a wasteful number, since it uses less digits than its factorization.

82138826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070.

The product of its digits is 36864, while the sum is 38.

The square root of 82138826 is about 9063.0472800267. The cubic root of 82138826 is about 434.6931839191.

The spelling of 82138826 in words is "eighty-two million, one hundred thirty-eight thousand, eight hundred twenty-six".