1618713 has 12 divisors (see below), whose sum is σ = 2401828. Its totient is φ = 1049760.

The previous prime is 1618703. The next prime is 1618739. The reversal of 1618713 is 3178161.

It can be written as a sum of positive squares in 2 ways, for example, as 1468944 + 149769 = 1212^2 + 387^2 .

It is not a de Polignac number, because 1618713 - 2⁵ = 1618681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1618703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2098 + ... + 2763.

2^1618713 is an apocalyptic number.

It is an amenable number.

1618713 is a deficient number, since it is larger than the sum of its proper divisors (783115).

1618713 is a wasteful number, since it uses less digits than its factorization.

1618713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904 (or 4901 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1618713 is about 1272.2865243333. The cubic root of 1618713 is about 117.4149195468.

The spelling of 1618713 in words is "one million, six hundred eighteen thousand, seven hundred thirteen".