1523923 has 4 divisors (see below), whose sum is σ = 1535688. Its totient is φ = 1512160.

The previous prime is 1523917. The next prime is 1523939. The reversal of 1523923 is 3293251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1523923 - 2⁵ = 1523891 is a prime.

It is a Duffinian number.

1523923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1523953) 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, 5686 + ... + 5947.

It is an arithmetic number, because the mean of its divisors is an integer number (383922).

2^1523923 is an apocalyptic number.

1523923 is a deficient number, since it is larger than the sum of its proper divisors (11765).

1523923 is a wasteful number, since it uses less digits than its factorization.

1523923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764.

The product of its digits is 1620, while the sum is 25.

The square root of 1523923 is about 1234.4727619514. The cubic root of 1523923 is about 115.0767729323.

The spelling of 1523923 in words is "one million, five hundred twenty-three thousand, nine hundred twenty-three".