1923601 has 4 divisors (see below), whose sum is σ = 2036772. Its totient is φ = 1810432.

The previous prime is 1923547. The next prime is 1923611. The reversal of 1923601 is 1063291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1063291 = 61 ⋅17431.

It can be written as a sum of positive squares in 2 ways, for example, as 1002001 + 921600 = 1001^2 + 960^2 .

It is not a de Polignac number, because 1923601 - 2¹¹ = 1921553 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1923611) 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, 56560 + ... + 56593.

It is an arithmetic number, because the mean of its divisors is an integer number (509193).

2^1923601 is an apocalyptic number.

It is an amenable number.

1923601 is a deficient number, since it is larger than the sum of its proper divisors (113171).

1923601 is a wasteful number, since it uses less digits than its factorization.

1923601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113170.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1923601 is about 1386.9394363129. The cubic root of 1923601 is about 124.3669541019.

Adding to 1923601 its reverse (1063291), we get a palindrome (2986892).

The spelling of 1923601 in words is "one million, nine hundred twenty-three thousand, six hundred one".