641222307 has 24 divisors (see below), whose sum is σ = 1011439728. Its totient is φ = 388224000.

The previous prime is 641222287. The next prime is 641222311. The reversal of 641222307 is 703222146.

It is not a de Polignac number, because 641222307 - 2⁶ = 641222243 is a prime.

It is a super-2 number, since 2×641222307² = 822332093988804498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641222347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116203 + ... + 121595.

It is an arithmetic number, because the mean of its divisors is an integer number (42143322).

Almost surely, 2^641222307 is an apocalyptic number.

641222307 is a deficient number, since it is larger than the sum of its proper divisors (370217421).

641222307 is a wasteful number, since it uses less digits than its factorization.

641222307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611 (or 6608 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 641222307 is about 25322.3677210485. The cubic root of 641222307 is about 862.3221480796.

The spelling of 641222307 in words is "six hundred forty-one million, two hundred twenty-two thousand, three hundred seven".