7713561 has 8 divisors (see below), whose sum is σ = 10318464. Its totient is φ = 5125520.

The previous prime is 7713547. The next prime is 7713569. The reversal of 7713561 is 1653177.

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 7713561 - 2¹⁴ = 7697177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7713569) 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 7 ways as a sum of consecutive naturals, for example, 3105 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (1289808).

Almost surely, 2^7713561 is an apocalyptic number.

It is an amenable number.

7713561 is a deficient number, since it is larger than the sum of its proper divisors (2604903).

7713561 is a wasteful number, since it uses less digits than its factorization.

7713561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431.

The product of its digits is 4410, while the sum is 30.

The square root of 7713561 is about 2777.3298327710. The cubic root of 7713561 is about 197.5839391105.

The spelling of 7713561 in words is "seven million, seven hundred thirteen thousand, five hundred sixty-one".