82408797 has 6 divisors (see below), whose sum is σ = 119034942. Its totient is φ = 54939192.

The previous prime is 82408789. The next prime is 82408801. The reversal of 82408797 is 79780428.

It can be written as a sum of positive squares in only one way, i.e., 69405561 + 13003236 = 8331^2 + 3606^2 .

It is not a de Polignac number, because 82408797 - 2³ = 82408789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82408787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4578258 + ... + 4578275.

It is an arithmetic number, because the mean of its divisors is an integer number (19839157).

Almost surely, 2^82408797 is an apocalyptic number.

It is an amenable number.

82408797 is a deficient number, since it is larger than the sum of its proper divisors (36626145).

82408797 is a wasteful number, since it uses less digits than its factorization.

82408797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9156539 (or 9156536 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 82408797 is about 9077.9291140656. The cubic root of 82408797 is about 435.1689078499.

The spelling of 82408797 in words is "eighty-two million, four hundred eight thousand, seven hundred ninety-seven".