82026913 has 4 divisors (see below), whose sum is σ = 82083348. Its totient is φ = 81970480.

The previous prime is 82026911. The next prime is 82026953. The reversal of 82026913 is 31962028.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69755904 + 12271009 = 8352^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 82026913 - 2¹ = 82026911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82026911) 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, 25978 + ... + 28963.

It is an arithmetic number, because the mean of its divisors is an integer number (20520837).

Almost surely, 2^82026913 is an apocalyptic number.

It is an amenable number.

82026913 is a deficient number, since it is larger than the sum of its proper divisors (56435).

82026913 is a wasteful number, since it uses less digits than its factorization.

82026913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56434.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 82026913 is about 9056.8710380572. The cubic root of 82026913 is about 434.4956730650.

The spelling of 82026913 in words is "eighty-two million, twenty-six thousand, nine hundred thirteen".