312407 has 2 divisors, whose sum is σ = 312408. Its totient is φ = 312406.

The previous prime is 312401. The next prime is 312413. The reversal of 312407 is 704213.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (312401) and next prime (312413).

It is an emirp because it is prime and its reverse (704213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312407 - 2⁶ = 312343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156203 + 156204.

It is an arithmetic number, because the mean of its divisors is an integer number (156204).

2³¹²⁴⁰⁷ is an apocalyptic number.

312407 is a deficient number, since it is larger than the sum of its proper divisors (1).

312407 is an equidigital number, since it uses as much as digits as its factorization.

312407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 312407 is about 558.9338064565. The cubic root of 312407 is about 67.8537079913.

The spelling of 312407 in words is "three hundred twelve thousand, four hundred seven", and thus it is an iban number.