319699647 has 12 divisors (see below), whose sum is σ = 474269640. Its totient is φ = 207372528.

The previous prime is 319699613. The next prime is 319699651. The reversal of 319699647 is 746996913.

It is not a de Polignac number, because 319699647 - 2¹⁹ = 319175359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 319699593 and 319699602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319699607) 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 11 ways as a sum of consecutive naturals, for example, 479697 + ... + 480362.

It is an arithmetic number, because the mean of its divisors is an integer number (39522470).

Almost surely, 2^319699647 is an apocalyptic number.

319699647 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

319699647 is a deficient number, since it is larger than the sum of its proper divisors (154569993).

319699647 is a wasteful number, since it uses less digits than its factorization.

319699647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960102 (or 960099 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 319699647 is about 17880.1467275859. The cubic root of 319699647 is about 683.7763131802.

It can be divided in two parts, 31969 and 9647, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 319699647 in words is "three hundred nineteen million, six hundred ninety-nine thousand, six hundred forty-seven".