641170 has 16 divisors (see below), whose sum is σ = 1167768. Its totient is φ = 253440.

The previous prime is 641167. The next prime is 641197. The reversal of 641170 is 71146.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 573049 + 68121 = 757^2 + 261^2 .

It is a super-2 number, since 2×641170² = 822197937800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 1300.

2⁶⁴¹¹⁷⁰ is an apocalyptic number.

641170 is a deficient number, since it is larger than the sum of its proper divisors (526598).

641170 is a wasteful number, since it uses less digits than its factorization.

641170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 641170 is about 800.7309161010. The cubic root of 641170 is about 86.2298699784.

The spelling of 641170 in words is "six hundred forty-one thousand, one hundred seventy".