8748661 has 4 divisors (see below), whose sum is σ = 8775424. Its totient is φ = 8721900.

The previous prime is 8748653. The next prime is 8748673. The reversal of 8748661 is 1668478.

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 8748661 - 2³ = 8748653 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 (8748601) 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, 12885 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (2193856).

Almost surely, 2^8748661 is an apocalyptic number.

It is an amenable number.

8748661 is a deficient number, since it is larger than the sum of its proper divisors (26763).

8748661 is a wasteful number, since it uses less digits than its factorization.

8748661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26762.

The product of its digits is 64512, while the sum is 40.

The square root of 8748661 is about 2957.8135505809. The cubic root of 8748661 is about 206.0537532142.

It can be divided in two parts, 8748 and 661, that added together give a square (9409 = 97²).

The spelling of 8748661 in words is "eight million, seven hundred forty-eight thousand, six hundred sixty-one".