82813837 has 8 divisors (see below), whose sum is σ = 87802400. Its totient is φ = 77888304.

The previous prime is 82813793. The next prime is 82813849. The reversal of 82813837 is 73831828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82813837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82813837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82813867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13038 + ... + 18319.

It is an arithmetic number, because the mean of its divisors is an integer number (10975300).

Almost surely, 2^82813837 is an apocalyptic number.

It is an amenable number.

82813837 is a deficient number, since it is larger than the sum of its proper divisors (4988563).

82813837 is a wasteful number, since it uses less digits than its factorization.

82813837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31515.

The product of its digits is 64512, while the sum is 40.

The square root of 82813837 is about 9100.2108217337. The cubic root of 82813837 is about 435.8806960419.

Subtracting from 82813837 its reverse (73831828), we obtain a square (8982009 = 2997²).

The spelling of 82813837 in words is "eighty-two million, eight hundred thirteen thousand, eight hundred thirty-seven".