1913733 has 8 divisors (see below), whose sum is σ = 2835200. Its totient is φ = 1275804.

The previous prime is 1913719. The next prime is 1913749. The reversal of 1913733 is 3373191.

It is not a de Polignac number, because 1913733 - 2⁵ = 1913701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 70879 = 1913733 / (1 + 9 + 1 + 3 + 7 + 3 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1913697 and 1913706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913773) 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 7 ways as a sum of consecutive naturals, for example, 35413 + ... + 35466.

It is an arithmetic number, because the mean of its divisors is an integer number (354400).

2^1913733 is an apocalyptic number.

It is an amenable number.

1913733 is a deficient number, since it is larger than the sum of its proper divisors (921467).

1913733 is an equidigital number, since it uses as much as digits as its factorization.

1913733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70888 (or 70882 counting only the distinct ones).

The product of its digits is 1701, while the sum is 27.

The square root of 1913733 is about 1383.3773888567. The cubic root of 1913733 is about 124.1539234904.

The spelling of 1913733 in words is "one million, nine hundred thirteen thousand, seven hundred thirty-three".