1618964 has 12 divisors (see below), whose sum is σ = 2847264. Its totient is φ = 805464.

The previous prime is 1618963. The next prime is 1618973. The reversal of 1618964 is 4698161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (237272).

2^1618964 is an apocalyptic number.

It is an amenable number.

1618964 is a deficient number, since it is larger than the sum of its proper divisors (1228300).

1618964 is a wasteful number, since it uses less digits than its factorization.

1618964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014 (or 2012 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1618964 is about 1272.3851618123. The cubic root of 1618964 is about 117.4209880761.

The spelling of 1618964 in words is "one million, six hundred eighteen thousand, nine hundred sixty-four".