1423679 has 4 divisors (see below), whose sum is σ = 1447080. Its totient is φ = 1400280.

The previous prime is 1423663. The next prime is 1423691. The reversal of 1423679 is 9763241.

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 1423679 - 2⁴ = 1423663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423379) 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, 11609 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (361770).

2^1423679 is an apocalyptic number.

1423679 is a deficient number, since it is larger than the sum of its proper divisors (23401).

1423679 is an equidigital number, since it uses as much as digits as its factorization.

1423679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23400.

The product of its digits is 9072, while the sum is 32.

The square root of 1423679 is about 1193.1802043279. The cubic root of 1423679 is about 112.4960722909.

The spelling of 1423679 in words is "one million, four hundred twenty-three thousand, six hundred seventy-nine".