1878788 has 12 divisors (see below), whose sum is σ = 3328080. Its totient is φ = 927912.

The previous prime is 1878781. The next prime is 1878791. The reversal of 1878788 is 8878781.

It is not an unprimeable number, because it can be changed into a prime (1878781) 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, 2498 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (277340).

2^1878788 is an apocalyptic number.

It is an amenable number.

1878788 is a deficient number, since it is larger than the sum of its proper divisors (1449292).

1878788 is a wasteful number, since it uses less digits than its factorization.

1878788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746 (or 5744 counting only the distinct ones).

The product of its digits is 200704, while the sum is 47.

The square root of 1878788 is about 1370.6888779005. The cubic root of 1878788 is about 123.3935879589.

The spelling of 1878788 in words is "one million, eight hundred seventy-eight thousand, seven hundred eighty-eight".