641098 has 8 divisors (see below), whose sum is σ = 1012320. Its totient is φ = 303660.

The previous prime is 641093. The next prime is 641101. The reversal of 641098 is 890146.

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

It is a super-2 number, since 2×641098² = 822013291208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641093) by changing a digit.

641098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8398 + ... + 8473.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2⁶⁴¹⁰⁹⁸ is an apocalyptic number.

641098 is a deficient number, since it is larger than the sum of its proper divisors (371222).

641098 is a wasteful number, since it uses less digits than its factorization.

641098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 641098 is about 800.6859559153. The cubic root of 641098 is about 86.2266421381.

The spelling of 641098 in words is "six hundred forty-one thousand, ninety-eight".