1979894 has 24 divisors (see below), whose sum is σ = 3508920. Its totient is φ = 835296.

The previous prime is 1979893. The next prime is 1979897. The reversal of 1979894 is 4989791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8609 + ... + 8835.

It is an arithmetic number, because the mean of its divisors is an integer number (146205).

2^1979894 is an apocalyptic number.

1979894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1979894 is a deficient number, since it is larger than the sum of its proper divisors (1529026).

1979894 is a wasteful number, since it uses less digits than its factorization.

1979894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 325 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 1979894 is about 1407.0870619830. The cubic root of 1979894 is about 125.5684827000.

The spelling of 1979894 in words is "one million, nine hundred seventy-nine thousand, eight hundred ninety-four".