641549367 has 12 divisors (see below), whose sum is σ = 936237120. Its totient is φ = 423289728.

The previous prime is 641549351. The next prime is 641549387. The reversal of 641549367 is 763945146.

641549367 is a `hidden beast` number, since 6 + 41 + 549 + 3 + 67 = 666.

641549367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641549367 - 2⁴ = 641549351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641549317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366567 + ... + 368312.

It is an arithmetic number, because the mean of its divisors is an integer number (78019760).

Almost surely, 2^641549367 is an apocalyptic number.

641549367 is a deficient number, since it is larger than the sum of its proper divisors (294687753).

641549367 is a wasteful number, since it uses less digits than its factorization.

641549367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734982 (or 734979 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 641549367 is about 25328.8248246933. The cubic root of 641549367 is about 862.4687343424.

The spelling of 641549367 in words is "six hundred forty-one million, five hundred forty-nine thousand, three hundred sixty-seven".