8704661 has 4 divisors (see below), whose sum is σ = 9948192. Its totient is φ = 7461132.

The previous prime is 8704651. The next prime is 8704687. The reversal of 8704661 is 1664078.

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 de Polignac number, because none of the positive numbers 2^k-8704661 is a prime.

It is a super-2 number, since 2×8704661² = 151542246249842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8704601) 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, 621755 + ... + 621768.

It is an arithmetic number, because the mean of its divisors is an integer number (2487048).

Almost surely, 2^8704661 is an apocalyptic number.

It is an amenable number.

8704661 is a deficient number, since it is larger than the sum of its proper divisors (1243531).

8704661 is a wasteful number, since it uses less digits than its factorization.

8704661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243530.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8704661 is about 2950.3662484512. The cubic root of 8704661 is about 205.7077342812.

The spelling of 8704661 in words is "eight million, seven hundred four thousand, six hundred sixty-one".