82470637 has 4 divisors (see below), whose sum is σ = 82898140. Its totient is φ = 82043136.

The previous prime is 82470607. The next prime is 82470649. The reversal of 82470637 is 73607428.

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 58155876 + 24314761 = 7626^2 + 4931^2 .

It is a cyclic number.

It is not a de Polignac number, because 82470637 - 2¹⁵ = 82437869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82470596 and 82470605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82470607) 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, 213462 + ... + 213847.

It is an arithmetic number, because the mean of its divisors is an integer number (20724535).

Almost surely, 2^82470637 is an apocalyptic number.

It is an amenable number.

82470637 is a deficient number, since it is larger than the sum of its proper divisors (427503).

82470637 is a wasteful number, since it uses less digits than its factorization.

82470637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427502.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 82470637 is about 9081.3345384916. The cubic root of 82470637 is about 435.2777316556.

The spelling of 82470637 in words is "eighty-two million, four hundred seventy thousand, six hundred thirty-seven".