93617993 has 4 divisors (see below), whose sum is σ = 106992000. Its totient is φ = 80243988.

The previous prime is 93617989. The next prime is 93618013. The reversal of 93617993 is 39971639.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39971639 = 43 ⋅929573.

It is a cyclic number.

It is not a de Polignac number, because 93617993 - 2² = 93617989 is a prime.

It is a super-2 number, since 2×93617993² = 17528657226696098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (93617983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6686993 + ... + 6687006.

It is an arithmetic number, because the mean of its divisors is an integer number (26748000).

Almost surely, 2^93617993 is an apocalyptic number.

It is an amenable number.

93617993 is a deficient number, since it is larger than the sum of its proper divisors (13374007).

93617993 is a wasteful number, since it uses less digits than its factorization.

93617993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374006.

The product of its digits is 275562, while the sum is 47.

The square root of 93617993 is about 9675.6391520147. The cubic root of 93617993 is about 454.0668279303.

The spelling of 93617993 in words is "ninety-three million, six hundred seventeen thousand, nine hundred ninety-three".