82913811 has 12 divisors (see below), whose sum is σ = 117438552. Its totient is φ = 52023808.

The previous prime is 82913807. The next prime is 82913819. The reversal of 82913811 is 11831928.

It is not a de Polignac number, because 82913811 - 2² = 82913807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82913819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46950 + ... + 48683.

It is an arithmetic number, because the mean of its divisors is an integer number (9786546).

Almost surely, 2^82913811 is an apocalyptic number.

82913811 is a deficient number, since it is larger than the sum of its proper divisors (34524741).

82913811 is a wasteful number, since it uses less digits than its factorization.

82913811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95670 (or 95653 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 82913811 is about 9105.7021146093. The cubic root of 82913811 is about 436.0560258924.

The spelling of 82913811 in words is "eighty-two million, nine hundred thirteen thousand, eight hundred eleven".