3123618 has 16 divisors (see below), whose sum is σ = 6265920. Its totient is φ = 1038096.

The previous prime is 3123611. The next prime is 3123623. The reversal of 3123618 is 8163213.

It is not an unprimeable number, because it can be changed into a prime (3123611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388 + ... + 3456.

It is an arithmetic number, because the mean of its divisors is an integer number (391620).

Almost surely, 2^3123618 is an apocalyptic number.

3123618 is an abundant number, since it is smaller than the sum of its proper divisors (3142302).

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

3123618 is a wasteful number, since it uses less digits than its factorization.

3123618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its digits is 864, while the sum is 24.

The square root of 3123618 is about 1767.3760211115. The cubic root of 3123618 is about 146.1793317727.

It can be divided in two parts, 3123 and 618, that added together give a triangular number (3741 = T₈₆).

The spelling of 3123618 in words is "three million, one hundred twenty-three thousand, six hundred eighteen".