312684377 has 4 divisors (see below), whose sum is σ = 317351376. Its totient is φ = 308017380.

The previous prime is 312684371. The next prime is 312684391. The reversal of 312684377 is 773486213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312684377 - 2²² = 308490073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312684371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333399 + ... + 2333532.

It is an arithmetic number, because the mean of its divisors is an integer number (79337844).

Almost surely, 2^312684377 is an apocalyptic number.

It is an amenable number.

312684377 is a deficient number, since it is larger than the sum of its proper divisors (4666999).

312684377 is an equidigital number, since it uses as much as digits as its factorization.

312684377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666998.

The product of its digits is 169344, while the sum is 41.

The square root of 312684377 is about 17682.8837297540. The cubic root of 312684377 is about 678.7378382237.

The spelling of 312684377 in words is "three hundred twelve million, six hundred eighty-four thousand, three hundred seventy-seven".