1423613623 has 4 divisors (see below), whose sum is σ = 1426142808. Its totient is φ = 1421084440.

The previous prime is 1423613621. The next prime is 1423613629. The reversal of 1423613623 is 3263163241.

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 1423613623 - 2¹ = 1423613621 is a prime.

It is a super-2 number, since 2×1423613623² = 4053351495182372258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423613621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263748 + ... + 1264873.

It is an arithmetic number, because the mean of its divisors is an integer number (356535702).

Almost surely, 2^1423613623 is an apocalyptic number.

1423613623 is a deficient number, since it is larger than the sum of its proper divisors (2529185).

1423613623 is an equidigital number, since it uses as much as digits as its factorization.

1423613623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529184.

The product of its digits is 15552, while the sum is 31.

The square root of 1423613623 is about 37730.8046958980. The cubic root of 1423613623 is about 1124.9435028089.

Adding to 1423613623 its reverse (3263163241), we get a palindrome (4686776864).

The spelling of 1423613623 in words is "one billion, four hundred twenty-three million, six hundred thirteen thousand, six hundred twenty-three".