6713561 has 4 divisors (see below), whose sum is σ = 6762000. Its totient is φ = 6665124.

The previous prime is 6713549. The next prime is 6713569. The reversal of 6713561 is 1653176.

6713561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-6713561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6713569) 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, 24011 + ... + 24288.

It is an arithmetic number, because the mean of its divisors is an integer number (1690500).

Almost surely, 2^6713561 is an apocalyptic number.

It is an amenable number.

6713561 is a deficient number, since it is larger than the sum of its proper divisors (48439).

6713561 is a wasteful number, since it uses less digits than its factorization.

6713561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48438.

The product of its digits is 3780, while the sum is 29.

The square root of 6713561 is about 2591.0540326284. The cubic root of 6713561 is about 188.6474676670.

The spelling of 6713561 in words is "six million, seven hundred thirteen thousand, five hundred sixty-one".