312726899 has 2 divisors, whose sum is σ = 312726900. Its totient is φ = 312726898.

The previous prime is 312726877. The next prime is 312726907. The reversal of 312726899 is 998627213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312726899 is a prime.

It is a super-2 number, since 2×312726899² = 195596226716312402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312726829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156363449 + 156363450.

It is an arithmetic number, because the mean of its divisors is an integer number (156363450).

Almost surely, 2^312726899 is an apocalyptic number.

312726899 is a deficient number, since it is larger than the sum of its proper divisors (1).

312726899 is an equidigital number, since it uses as much as digits as its factorization.

312726899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 312726899 is about 17684.0860380173. The cubic root of 312726899 is about 678.7686040526.

The spelling of 312726899 in words is "three hundred twelve million, seven hundred twenty-six thousand, eight hundred ninety-nine".