1423709579 has 4 divisors (see below), whose sum is σ = 1437015384. Its totient is φ = 1410403776.

The previous prime is 1423709549. The next prime is 1423709633. The reversal of 1423709579 is 9759073241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9759073241 = 401 ⋅24336841.

It is a cyclic number.

It is not a de Polignac number, because 1423709579 - 2¹² = 1423705483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423709509) 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, 6652742 + ... + 6652955.

It is an arithmetic number, because the mean of its divisors is an integer number (359253846).

Almost surely, 2^1423709579 is an apocalyptic number.

1423709579 is a deficient number, since it is larger than the sum of its proper divisors (13305805).

1423709579 is a wasteful number, since it uses less digits than its factorization.

1423709579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305804.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 1423709579 is about 37732.0762614516. The cubic root of 1423709579 is about 1124.9687771417.

The spelling of 1423709579 in words is "one billion, four hundred twenty-three million, seven hundred nine thousand, five hundred seventy-nine".