8749618 has 4 divisors (see below), whose sum is σ = 13124430. Its totient is φ = 4374808.

The previous prime is 8749613. The next prime is 8749627. The reversal of 8749618 is 8169478.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8169478 = 2 ⋅4084739.

It can be written as a sum of positive squares in only one way, i.e., 6017209 + 2732409 = 2453^2 + 1653^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8749613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2187403 + ... + 2187406.

Almost surely, 2^8749618 is an apocalyptic number.

8749618 is a deficient number, since it is larger than the sum of its proper divisors (4374812).

8749618 is a wasteful number, since it uses less digits than its factorization.

8749618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374811.

The product of its digits is 96768, while the sum is 43.

The square root of 8749618 is about 2957.9753210600. The cubic root of 8749618 is about 206.0612662211.

The spelling of 8749618 in words is "eight million, seven hundred forty-nine thousand, six hundred eighteen".