8749668 has 12 divisors (see below), whose sum is σ = 20415920. Its totient is φ = 2916552.

The previous prime is 8749651. The next prime is 8749669. The reversal of 8749668 is 8669478.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8749668² = 153113380220448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8749669) 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, 364558 + ... + 364581.

Almost surely, 2^8749668 is an apocalyptic number.

It is an amenable number.

8749668 is an abundant number, since it is smaller than the sum of its proper divisors (11666252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8749668 is a wasteful number, since it uses less digits than its factorization.

8749668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729146 (or 729144 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 8749668 is about 2957.9837727750. The cubic root of 8749668 is about 206.0616587351.

The spelling of 8749668 in words is "eight million, seven hundred forty-nine thousand, six hundred sixty-eight".