641097 has 6 divisors (see below), whose sum is σ = 926042. Its totient is φ = 427392.

The previous prime is 641093. The next prime is 641101. The reversal of 641097 is 790146.

It is an interprime number because it is at equal distance from previous prime (641093) and next prime (641101).

It can be written as a sum of positive squares in only one way, i.e., 594441 + 46656 = 771^2 + 216^2 .

It is not a de Polignac number, because 641097 - 2² = 641093 is a prime.

It is a super-2 number, since 2×641097² = 822010726818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641097.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35608 + ... + 35625.

2⁶⁴¹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

641097 is a deficient number, since it is larger than the sum of its proper divisors (284945).

641097 is a wasteful number, since it uses less digits than its factorization.

641097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71239 (or 71236 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 641097 is about 800.6853314505. The cubic root of 641097 is about 86.2265973053.

The spelling of 641097 in words is "six hundred forty-one thousand, ninety-seven".