1423913 has 4 divisors (see below), whose sum is σ = 1436628. Its totient is φ = 1411200.

The previous prime is 1423909. The next prime is 1423921. The reversal of 1423913 is 3193241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 196249 + 1227664 = 443^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423913 - 2² = 1423909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (359157).

2^1423913 is an apocalyptic number.

It is an amenable number.

1423913 is a deficient number, since it is larger than the sum of its proper divisors (12715).

1423913 is a wasteful number, since it uses less digits than its factorization.

1423913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714.

The product of its digits is 648, while the sum is 23.

The square root of 1423913 is about 1193.2782575745. The cubic root of 1423913 is about 112.5022353465.

The spelling of 1423913 in words is "one million, four hundred twenty-three thousand, nine hundred thirteen".