1423173387 has 8 divisors (see below), whose sum is σ = 1921584640. Its totient is φ = 936772200.

The previous prime is 1423173379. The next prime is 1423173407. The reversal of 1423173387 is 7833713241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1423173387 - 2³ = 1423173379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423173307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3002239 + ... + 3002712.

It is an arithmetic number, because the mean of its divisors is an integer number (240198080).

Almost surely, 2^1423173387 is an apocalyptic number.

1423173387 is a deficient number, since it is larger than the sum of its proper divisors (498411253).

1423173387 is an equidigital number, since it uses as much as digits as its factorization.

1423173387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005033.

The product of its digits is 84672, while the sum is 39.

The square root of 1423173387 is about 37724.9703379605. The cubic root of 1423173387 is about 1124.8275322773.

The spelling of 1423173387 in words is "one billion, four hundred twenty-three million, one hundred seventy-three thousand, three hundred eighty-seven".