319447953 has 24 divisors (see below), whose sum is σ = 505327680. Its totient is φ = 192852960.

The previous prime is 319447939. The next prime is 319447981. The reversal of 319447953 is 359744913.

It is not a de Polignac number, because 319447953 - 2¹⁰ = 319446929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 319447899 and 319447908.

It is not an unprimeable number, because it can be changed into a prime (319447913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19903 + ... + 32171.

It is an arithmetic number, because the mean of its divisors is an integer number (21055320).

Almost surely, 2^319447953 is an apocalyptic number.

319447953 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

319447953 is a deficient number, since it is larger than the sum of its proper divisors (185879727).

319447953 is a wasteful number, since it uses less digits than its factorization.

319447953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12549 (or 12546 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 319447953 is about 17873.1069766843. The cubic root of 319447953 is about 683.5968243161.

It can be divided in two parts, 319447 and 953, that added together give a triangular number (320400 = T₈₀₀).

The spelling of 319447953 in words is "three hundred nineteen million, four hundred forty-seven thousand, nine hundred fifty-three".