641473067 has 2 divisors, whose sum is σ = 641473068. Its totient is φ = 641473066.

The previous prime is 641473051. The next prime is 641473099. The reversal of 641473067 is 760374146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641473067 - 2⁴ = 641473051 is a prime.

It is a super-2 number, since 2×641473067² = 822975391372772978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641473067.

It is not a weakly prime, because it can be changed into another prime (641473037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320736533 + 320736534.

It is an arithmetic number, because the mean of its divisors is an integer number (320736534).

Almost surely, 2^641473067 is an apocalyptic number.

641473067 is a deficient number, since it is larger than the sum of its proper divisors (1).

641473067 is an equidigital number, since it uses as much as digits as its factorization.

641473067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 641473067 is about 25327.3185908023. The cubic root of 641473067 is about 862.4345416121.

The spelling of 641473067 in words is "six hundred forty-one million, four hundred seventy-three thousand, sixty-seven".