1979996 has 12 divisors (see below), whose sum is σ = 3479448. Its totient is φ = 985872.

The previous prime is 1979993. The next prime is 1980019. The reversal of 1979996 is 6999791.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979993) 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, 215 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (289954).

2^1979996 is an apocalyptic number.

It is an amenable number.

1979996 is a deficient number, since it is larger than the sum of its proper divisors (1499452).

1979996 is a wasteful number, since it uses less digits than its factorization.

1979996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2066 counting only the distinct ones).

The product of its digits is 275562, while the sum is 50.

The square root of 1979996 is about 1407.1233066082. The cubic root of 1979996 is about 125.5706390049.

The spelling of 1979996 in words is "one million, nine hundred seventy-nine thousand, nine hundred ninety-six".