72841613 has 8 divisors (see below), whose sum is σ = 80269728. Its totient is φ = 65674224.

The previous prime is 72841607. The next prime is 72841619. The reversal of 72841613 is 31614827.

It is an interprime number because it is at equal distance from previous prime (72841607) and next prime (72841619).

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 72841613 - 2¹⁰ = 72840589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72841613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72841619) 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, 64595 + ... + 65712.

It is an arithmetic number, because the mean of its divisors is an integer number (10033716).

Almost surely, 2^72841613 is an apocalyptic number.

It is an amenable number.

72841613 is a deficient number, since it is larger than the sum of its proper divisors (7428115).

72841613 is a wasteful number, since it uses less digits than its factorization.

72841613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130363.

The product of its digits is 8064, while the sum is 32.

The square root of 72841613 is about 8534.7298141183. The cubic root of 72841613 is about 417.6314391275.

The spelling of 72841613 in words is "seventy-two million, eight hundred forty-one thousand, six hundred thirteen".