311694047 has 16 divisors (see below), whose sum is σ = 368640000. Its totient is φ = 263382840.

The previous prime is 311694041. The next prime is 311694067. The reversal of 311694047 is 740496113.

It is not a de Polignac number, because 311694047 - 2¹⁶ = 311628511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311693998 and 311694016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311694041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17954 + ... + 30752.

It is an arithmetic number, because the mean of its divisors is an integer number (23040000).

Almost surely, 2^311694047 is an apocalyptic number.

311694047 is a deficient number, since it is larger than the sum of its proper divisors (56945953).

311694047 is an equidigital number, since it uses as much as digits as its factorization.

311694047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891 (or 12877 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 311694047 is about 17654.8590195447. The cubic root of 311694047 is about 678.0205170971.

The spelling of 311694047 in words is "three hundred eleven million, six hundred ninety-four thousand, forty-seven".