82208737 has 8 divisors (see below), whose sum is σ = 88703720. Its totient is φ = 75738240.

The previous prime is 82208717. The next prime is 82208759. The reversal of 82208737 is 73780228.

It can be written as a sum of positive squares in 4 ways, for example, as 18352656 + 63856081 = 4284^2 + 7991^2 .

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-82208737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82208696 and 82208705.

It is not an unprimeable number, because it can be changed into a prime (82208717) 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, 1189 + ... + 12877.

It is an arithmetic number, because the mean of its divisors is an integer number (11087965).

Almost surely, 2^82208737 is an apocalyptic number.

It is an amenable number.

82208737 is a deficient number, since it is larger than the sum of its proper divisors (6494983).

82208737 is a wasteful number, since it uses less digits than its factorization.

82208737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12243.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 82208737 is about 9066.9033853902. The cubic root of 82208737 is about 434.8164760689.

The spelling of 82208737 in words is "eighty-two million, two hundred eight thousand, seven hundred thirty-seven".