319642463 has 4 divisors (see below), whose sum is σ = 365305680. Its totient is φ = 273979248.

The previous prime is 319642459. The next prime is 319642487. The reversal of 319642463 is 364246913.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364246913 = 17 ⋅21426289.

It is a cyclic number.

It is not a de Polignac number, because 319642463 - 2² = 319642459 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 (319642163) 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 3 ways as a sum of consecutive naturals, for example, 22831598 + ... + 22831611.

It is an arithmetic number, because the mean of its divisors is an integer number (91326420).

Almost surely, 2^319642463 is an apocalyptic number.

319642463 is a deficient number, since it is larger than the sum of its proper divisors (45663217).

319642463 is an equidigital number, since it uses as much as digits as its factorization.

319642463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45663216.

The product of its digits is 93312, while the sum is 38.

The square root of 319642463 is about 17878.5475640501. The cubic root of 319642463 is about 683.7355422081.

The spelling of 319642463 in words is "three hundred nineteen million, six hundred forty-two thousand, four hundred sixty-three".