82660437 has 6 divisors (see below), whose sum is σ = 119398422. Its totient is φ = 55106952.

The previous prime is 82660433. The next prime is 82660439. The reversal of 82660437 is 73406628.

It can be written as a sum of positive squares in only one way, i.e., 45279441 + 37380996 = 6729^2 + 6114^2 .

It is not a de Polignac number, because 82660437 - 2² = 82660433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82660433) 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, 4592238 + ... + 4592255.

It is an arithmetic number, because the mean of its divisors is an integer number (19899737).

Almost surely, 2^82660437 is an apocalyptic number.

It is an amenable number.

82660437 is a deficient number, since it is larger than the sum of its proper divisors (36737985).

82660437 is a wasteful number, since it uses less digits than its factorization.

82660437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184499 (or 9184496 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 82660437 is about 9091.7785388779. The cubic root of 82660437 is about 435.6113955284.

The spelling of 82660437 in words is "eighty-two million, six hundred sixty thousand, four hundred thirty-seven".