641676307 has 2 divisors, whose sum is σ = 641676308. Its totient is φ = 641676306.

The previous prime is 641676283. The next prime is 641676319. The reversal of 641676307 is 703676146.

641676307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641676307 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 641676307.

It is not a weakly prime, because it can be changed into another prime (641676367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320838153 + 320838154.

It is an arithmetic number, because the mean of its divisors is an integer number (320838154).

Almost surely, 2^641676307 is an apocalyptic number.

641676307 is a deficient number, since it is larger than the sum of its proper divisors (1).

641676307 is an equidigital number, since it uses as much as digits as its factorization.

641676307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 641676307 is about 25331.3305414461. The cubic root of 641676307 is about 862.5256146422.

The spelling of 641676307 in words is "six hundred forty-one million, six hundred seventy-six thousand, three hundred seven".