641412347 has 2 divisors, whose sum is σ = 641412348. Its totient is φ = 641412346.

The previous prime is 641412341. The next prime is 641412349. The reversal of 641412347 is 743214146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 641412347 - 2¹⁸ = 641150203 is a prime.

It is a super-2 number, since 2×641412347² = 822819597768096818, which contains 22 as substring.

Together with 641412349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (641412341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320706173 + 320706174.

It is an arithmetic number, because the mean of its divisors is an integer number (320706174).

Almost surely, 2^641412347 is an apocalyptic number.

641412347 is a deficient number, since it is larger than the sum of its proper divisors (1).

641412347 is an equidigital number, since it uses as much as digits as its factorization.

641412347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 641412347 is about 25326.1198567803. The cubic root of 641412347 is about 862.4073288937.

The spelling of 641412347 in words is "six hundred forty-one million, four hundred twelve thousand, three hundred forty-seven".