71613793 has 8 divisors (see below), whose sum is σ = 75533120. Its totient is φ = 67709520.

The previous prime is 71613781. The next prime is 71613797. The reversal of 71613793 is 39731617.

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 71613793 - 2²⁵ = 38059361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71613797) 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, 6796 + ... + 13762.

It is an arithmetic number, because the mean of its divisors is an integer number (9441640).

Almost surely, 2^71613793 is an apocalyptic number.

It is an amenable number.

71613793 is a deficient number, since it is larger than the sum of its proper divisors (3919327).

71613793 is a wasteful number, since it uses less digits than its factorization.

71613793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527.

The product of its digits is 23814, while the sum is 37.

The square root of 71613793 is about 8462.4933087123. The cubic root of 71613793 is about 415.2715946083.

The spelling of 71613793 in words is "seventy-one million, six hundred thirteen thousand, seven hundred ninety-three".