312467983 has 2 divisors, whose sum is σ = 312467984. Its totient is φ = 312467982.

The previous prime is 312467963. The next prime is 312468059. The reversal of 312467983 is 389764213.

It is a weak prime.

It is an emirp because it is prime and its reverse (389764213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312467983 - 2²¹ = 310370831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312467963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156233991 + 156233992.

It is an arithmetic number, because the mean of its divisors is an integer number (156233992).

Almost surely, 2^312467983 is an apocalyptic number.

312467983 is a deficient number, since it is larger than the sum of its proper divisors (1).

312467983 is an equidigital number, since it uses as much as digits as its factorization.

312467983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 312467983 is about 17676.7639289549. The cubic root of 312467983 is about 678.5812280215.

The spelling of 312467983 in words is "three hundred twelve million, four hundred sixty-seven thousand, nine hundred eighty-three".