641069 has 8 divisors (see below), whose sum is σ = 753312. Its totient is φ = 537840.

The previous prime is 641057. The next prime is 641077. The reversal of 641069 is 960146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641069 is a prime.

It is a super-2 number, since 2×641069² = 821938925522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099 + ... + 2384.

It is an arithmetic number, because the mean of its divisors is an integer number (94164).

2⁶⁴¹⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

641069 is a deficient number, since it is larger than the sum of its proper divisors (112243).

641069 is a wasteful number, since it uses less digits than its factorization.

641069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 641069 is about 800.6678462384. The cubic root of 641069 is about 86.2253419675.

The spelling of 641069 in words is "six hundred forty-one thousand, sixty-nine".