641413807 has 2 divisors, whose sum is σ = 641413808. Its totient is φ = 641413806.

The previous prime is 641413783. The next prime is 641413823. The reversal of 641413807 is 708314146.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 641413807 - 2¹⁹ = 640889519 is a prime.

It is a super-2 number, since 2×641413807² = 822823343620466498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641413867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320706903 + 320706904.

It is an arithmetic number, because the mean of its divisors is an integer number (320706904).

Almost surely, 2^641413807 is an apocalyptic number.

641413807 is a deficient number, since it is larger than the sum of its proper divisors (1).

641413807 is an equidigital number, since it uses as much as digits as its factorization.

641413807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 641413807 is about 25326.1486807608. The cubic root of 641413807 is about 862.4079832381.

The spelling of 641413807 in words is "six hundred forty-one million, four hundred thirteen thousand, eight hundred seven".