311793493 has 8 divisors (see below), whose sum is σ = 342736416. Its totient is φ = 281283600.

The previous prime is 311793437. The next prime is 311793511. The reversal of 311793493 is 394397113.

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 311793493 - 2¹³ = 311785301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311793193) 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, 106746 + ... + 109627.

It is an arithmetic number, because the mean of its divisors is an integer number (42842052).

Almost surely, 2^311793493 is an apocalyptic number.

It is an amenable number.

311793493 is a deficient number, since it is larger than the sum of its proper divisors (30942923).

311793493 is a wasteful number, since it uses less digits than its factorization.

311793493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216515.

The product of its digits is 61236, while the sum is 40.

The square root of 311793493 is about 17657.6751867283. The cubic root of 311793493 is about 678.0926169222.

The spelling of 311793493 in words is "three hundred eleven million, seven hundred ninety-three thousand, four hundred ninety-three".