8713661 has 4 divisors (see below), whose sum is σ = 9505824. Its totient is φ = 7921500.

The previous prime is 8713643. The next prime is 8713693. The reversal of 8713661 is 1663178.

8713661 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 not a de Polignac number, because 8713661 - 2¹⁴ = 8697277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8713631) 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, 396065 + ... + 396086.

It is an arithmetic number, because the mean of its divisors is an integer number (2376456).

Almost surely, 2^8713661 is an apocalyptic number.

It is an amenable number.

8713661 is a deficient number, since it is larger than the sum of its proper divisors (792163).

8713661 is a wasteful number, since it uses less digits than its factorization.

8713661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792162.

The product of its digits is 6048, while the sum is 32.

The square root of 8713661 is about 2951.8910887768. The cubic root of 8713661 is about 205.7786055808.

The spelling of 8713661 in words is "eight million, seven hundred thirteen thousand, six hundred sixty-one".