1878673 has 4 divisors (see below), whose sum is σ = 1884160. Its totient is φ = 1873188.

The previous prime is 1878659. The next prime is 1878677. The reversal of 1878673 is 3768781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1878673 - 2⁵ = 1878641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1878677) 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, 2193 + ... + 2926.

It is an arithmetic number, because the mean of its divisors is an integer number (471040).

2^1878673 is an apocalyptic number.

It is an amenable number.

1878673 is a deficient number, since it is larger than the sum of its proper divisors (5487).

1878673 is an equidigital number, since it uses as much as digits as its factorization.

1878673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its digits is 56448, while the sum is 40.

The square root of 1878673 is about 1370.6469275492. The cubic root of 1878673 is about 123.3910702805.

The spelling of 1878673 in words is "one million, eight hundred seventy-eight thousand, six hundred seventy-three".