1979933 has 4 divisors (see below), whose sum is σ = 2084160. Its totient is φ = 1875708.

The previous prime is 1979911. The next prime is 1979941. The reversal of 1979933 is 3399791.

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 1979933 - 2¹⁰ = 1978909 is a prime.

It is a Duffinian 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, 52085 + ... + 52122.

It is an arithmetic number, because the mean of its divisors is an integer number (521040).

2^1979933 is an apocalyptic number.

It is an amenable number.

1979933 is a deficient number, since it is larger than the sum of its proper divisors (104227).

1979933 is a wasteful number, since it uses less digits than its factorization.

1979933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104226.

The product of its digits is 45927, while the sum is 41.

The square root of 1979933 is about 1407.1009203323. The cubic root of 1979933 is about 125.5693071783.

The spelling of 1979933 in words is "one million, nine hundred seventy-nine thousand, nine hundred thirty-three".