319977493 has 8 divisors (see below), whose sum is σ = 349352640. Its totient is φ = 290650080.

The previous prime is 319977487. The next prime is 319977527. The reversal of 319977493 is 394779913.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 319977493 - 2¹³ = 319969301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319977493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319977433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896 + ... + 25462.

It is an arithmetic number, because the mean of its divisors is an integer number (43669080).

Almost surely, 2^319977493 is an apocalyptic number.

It is an amenable number.

319977493 is a deficient number, since it is larger than the sum of its proper divisors (29375147).

319977493 is a wasteful number, since it uses less digits than its factorization.

319977493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23867.

The product of its digits is 1285956, while the sum is 52.

The square root of 319977493 is about 17887.9147191616. The cubic root of 319977493 is about 683.9743422828.

The spelling of 319977493 in words is "three hundred nineteen million, nine hundred seventy-seven thousand, four hundred ninety-three".