1818007 has 6 divisors (see below), whose sum is σ = 1859768. Its totient is φ = 1777164.

The previous prime is 1817999. The next prime is 1818013. The reversal of 1818007 is 7008181.

It is not a de Polignac number, because 1818007 - 2³ = 1817999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1798 + ... + 2620.

2^1818007 is an apocalyptic number.

1818007 is a deficient number, since it is larger than the sum of its proper divisors (41761).

1818007 is an frugal number, since it uses more digits than its factorization.

1818007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1818007 is about 1348.3348990514. The cubic root of 1818007 is about 122.0483325472.

The spelling of 1818007 in words is "one million, eight hundred eighteen thousand, seven".