1878964 has 12 divisors (see below), whose sum is σ = 3318084. Its totient is φ = 930944.

The previous prime is 1878949. The next prime is 1878977. The reversal of 1878964 is 4698781.

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 1542564 = 580^2 + 1242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1878964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1627 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (276507).

2^1878964 is an apocalyptic number.

It is an amenable number.

1878964 is a deficient number, since it is larger than the sum of its proper divisors (1439120).

1878964 is a wasteful number, since it uses less digits than its factorization.

1878964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274 (or 4272 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 1878964 is about 1370.7530776912. The cubic root of 1878964 is about 123.3974409027.

The spelling of 1878964 in words is "one million, eight hundred seventy-eight thousand, nine hundred sixty-four".