82618613 has 8 divisors (see below), whose sum is σ = 103005120. Its totient is φ = 64378080.

The previous prime is 82618607. The next prime is 82618633. The reversal of 82618613 is 31681628.

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

It is a cyclic number.

It is not a de Polignac number, because 82618613 - 2⁴ = 82618597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82618603) 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, 536408 + ... + 536561.

It is an arithmetic number, because the mean of its divisors is an integer number (12875640).

Almost surely, 2^82618613 is an apocalyptic number.

It is an amenable number.

82618613 is a deficient number, since it is larger than the sum of its proper divisors (20386507).

82618613 is a wasteful number, since it uses less digits than its factorization.

82618613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072987.

The product of its digits is 13824, while the sum is 35.

The square root of 82618613 is about 9089.4781478367. The cubic root of 82618613 is about 435.5379138431.

The spelling of 82618613 in words is "eighty-two million, six hundred eighteen thousand, six hundred thirteen".