491212327 has 2 divisors, whose sum is σ = 491212328. Its totient is φ = 491212326.

The previous prime is 491212313. The next prime is 491212361. The reversal of 491212327 is 723212194.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491212327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491212387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245606163 + 245606164.

It is an arithmetic number, because the mean of its divisors is an integer number (245606164).

Almost surely, 2^491212327 is an apocalyptic number.

491212327 is a deficient number, since it is larger than the sum of its proper divisors (1).

491212327 is an equidigital number, since it uses as much as digits as its factorization.

491212327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 491212327 is about 22163.3103799951. The cubic root of 491212327 is about 789.0231621263.

The spelling of 491212327 in words is "four hundred ninety-one million, two hundred twelve thousand, three hundred twenty-seven".