1873913 has 4 divisors (see below), whose sum is σ = 1972560. Its totient is φ = 1775268.

The previous prime is 1873889. The next prime is 1873967. The reversal of 1873913 is 3193781.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3193781 = 643 ⋅4967.

It is a cyclic number.

It is not a de Polignac number, because 1873913 - 2⁶ = 1873849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1873913.

It is not an unprimeable number, because it can be changed into a prime (1873013) 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, 49295 + ... + 49332.

It is an arithmetic number, because the mean of its divisors is an integer number (493140).

2^1873913 is an apocalyptic number.

It is an amenable number.

1873913 is a deficient number, since it is larger than the sum of its proper divisors (98647).

1873913 is an equidigital number, since it uses as much as digits as its factorization.

1873913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98646.

The product of its digits is 4536, while the sum is 32.

The square root of 1873913 is about 1368.9094199398. The cubic root of 1873913 is about 123.2867700211.

The spelling of 1873913 in words is "one million, eight hundred seventy-three thousand, nine hundred thirteen".