6618874 has 4 divisors (see below), whose sum is σ = 9928314. Its totient is φ = 3309436.

The previous prime is 6618853. The next prime is 6618901. The reversal of 6618874 is 4788166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4788166 = 2 ⋅2394083.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 3214849 = 1845^2 + 1793^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1654717 + ... + 1654720.

Almost surely, 2^6618874 is an apocalyptic number.

6618874 is a deficient number, since it is larger than the sum of its proper divisors (3309440).

6618874 is a wasteful number, since it uses less digits than its factorization.

6618874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309439.

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

The square root of 6618874 is about 2572.7172405844. The cubic root of 6618874 is about 187.7563805343.

The spelling of 6618874 in words is "six million, six hundred eighteen thousand, eight hundred seventy-four".