1913339 has 4 divisors (see below), whose sum is σ = 1916856. Its totient is φ = 1909824.

The previous prime is 1913297. The next prime is 1913341. The reversal of 1913339 is 9333191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9333191 = 7 ⋅1333313.

It is a cyclic number.

It is not a de Polignac number, because 1913339 - 2¹⁶ = 1847803 is a prime.

It is a super-2 number, since 2×1913339² = 7321732257842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913389) 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, 749 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (479214).

2^1913339 is an apocalyptic number.

1913339 is a deficient number, since it is larger than the sum of its proper divisors (3517).

1913339 is an equidigital number, since it uses as much as digits as its factorization.

1913339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516.

The product of its digits is 2187, while the sum is 29.

The square root of 1913339 is about 1383.2349764230. The cubic root of 1913339 is about 124.1454026216.

The spelling of 1913339 in words is "one million, nine hundred thirteen thousand, three hundred thirty-nine".