1933939 has 4 divisors (see below), whose sum is σ = 2210224. Its totient is φ = 1657656.

The previous prime is 1933931. The next prime is 1933957. The reversal of 1933939 is 9393391.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1933939 - 2³ = 1933931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1933898 and 1933907.

It is not an unprimeable number, because it can be changed into a prime (1933931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138132 + ... + 138145.

It is an arithmetic number, because the mean of its divisors is an integer number (552556).

2^1933939 is an apocalyptic number.

1933939 is a deficient number, since it is larger than the sum of its proper divisors (276285).

1933939 is an equidigital number, since it uses as much as digits as its factorization.

1933939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276284.

The product of its digits is 19683, while the sum is 37.

The square root of 1933939 is about 1390.6613534574. The cubic root of 1933939 is about 124.5893510837.

The spelling of 1933939 in words is "one million, nine hundred thirty-three thousand, nine hundred thirty-nine".