641199 has 16 divisors (see below), whose sum is σ = 945504. Its totient is φ = 384000.

The previous prime is 641197. The next prime is 641203. The reversal of 641199 is 991146.

641199 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641199 - 2¹ = 641197 is a prime.

It is a super-2 number, since 2×641199² = 822272315202, which contains 22 as substring.

641199 is strictly pandigital in base 7.

641199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (59094).

2⁶⁴¹¹⁹⁹ is an apocalyptic number.

641199 is a deficient number, since it is larger than the sum of its proper divisors (304305).

641199 is a wasteful number, since it uses less digits than its factorization.

641199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its digits is 1944, while the sum is 30.

The square root of 641199 is about 800.7490243516. The cubic root of 641199 is about 86.2311700124.

The spelling of 641199 in words is "six hundred forty-one thousand, one hundred ninety-nine".