71560993 has 4 divisors (see below), whose sum is σ = 81784000. Its totient is φ = 61337988.

The previous prime is 71560967. The next prime is 71560999. The reversal of 71560993 is 39906517.

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.

It is a cyclic number.

It is not a de Polignac number, because 71560993 - 2⁵ = 71560961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71560999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5111493 + ... + 5111506.

It is an arithmetic number, because the mean of its divisors is an integer number (20446000).

Almost surely, 2^71560993 is an apocalyptic number.

It is an amenable number.

71560993 is a deficient number, since it is larger than the sum of its proper divisors (10223007).

71560993 is a wasteful number, since it uses less digits than its factorization.

71560993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223006.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 71560993 is about 8459.3730855188. The cubic root of 71560993 is about 415.1695112425.

The spelling of 71560993 in words is "seventy-one million, five hundred sixty thousand, nine hundred ninety-three".