1873385 has 4 divisors (see below), whose sum is σ = 2248068. Its totient is φ = 1498704.

The previous prime is 1873379. The next prime is 1873409. The reversal of 1873385 is 5833781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5833781 = 47 ⋅124123.

It can be written as a sum of positive squares in 2 ways, for example, as 1149184 + 724201 = 1072^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1873385 - 2⁶ = 1873321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187334 + ... + 187343.

It is an arithmetic number, because the mean of its divisors is an integer number (562017).

2^1873385 is an apocalyptic number.

It is an amenable number.

1873385 is a deficient number, since it is larger than the sum of its proper divisors (374683).

1873385 is an equidigital number, since it uses as much as digits as its factorization.

1873385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374682.

The product of its digits is 20160, while the sum is 35.

The square root of 1873385 is about 1368.7165521027. The cubic root of 1873385 is about 123.2751897024.

The spelling of 1873385 in words is "one million, eight hundred seventy-three thousand, three hundred eighty-five".