641049 has 16 divisors (see below), whose sum is σ = 904704. Its totient is φ = 403200.

The previous prime is 640993. The next prime is 641051. The reversal of 641049 is 940146.

It is not a de Polignac number, because 641049 - 2⁸ = 640793 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5617 + ... + 5729.

It is an arithmetic number, because the mean of its divisors is an integer number (56544).

2⁶⁴¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

641049 is a deficient number, since it is larger than the sum of its proper divisors (263655).

641049 is a wasteful number, since it uses less digits than its factorization.

641049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 641049 is about 800.6553565674. The cubic root of 641049 is about 86.2244452753.

The spelling of 641049 in words is "six hundred forty-one thousand, forty-nine".