82907613 has 6 divisors (see below), whose sum is σ = 119755454. Its totient is φ = 55271736.

The previous prime is 82907611. The next prime is 82907641. The reversal of 82907613 is 31670928.

It can be written as a sum of positive squares in only one way, i.e., 73925604 + 8982009 = 8598^2 + 2997^2 .

It is not a de Polignac number, because 82907613 - 2¹ = 82907611 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82907611) 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, 4605970 + ... + 4605987.

Almost surely, 2^82907613 is an apocalyptic number.

It is an amenable number.

82907613 is a deficient number, since it is larger than the sum of its proper divisors (36847841).

82907613 is a wasteful number, since it uses less digits than its factorization.

82907613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211963 (or 9211960 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 82907613 is about 9105.3617720550. The cubic root of 82907613 is about 436.0451602213.

The spelling of 82907613 in words is "eighty-two million, nine hundred seven thousand, six hundred thirteen".