82913405 has 16 divisors (see below), whose sum is σ = 101986560. Its totient is φ = 64681152.

The previous prime is 82913401. The next prime is 82913419. The reversal of 82913405 is 50431928.

It is a cyclic number.

It is not a de Polignac number, because 82913405 - 2² = 82913401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82913401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90962 + ... + 91868.

It is an arithmetic number, because the mean of its divisors is an integer number (6374160).

Almost surely, 2^82913405 is an apocalyptic number.

It is an amenable number.

82913405 is a deficient number, since it is larger than the sum of its proper divisors (19073155).

82913405 is a wasteful number, since it uses less digits than its factorization.

82913405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 82913405 is about 9105.6798208591. The cubic root of 82913405 is about 436.0553141532.

The spelling of 82913405 in words is "eighty-two million, nine hundred thirteen thousand, four hundred five".