641417 has 4 divisors (see below), whose sum is σ = 733056. Its totient is φ = 549780.

The previous prime is 641413. The next prime is 641419. The reversal of 641417 is 714146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 714146 = 2 ⋅357073.

It is not a de Polignac number, because 641417 - 2² = 641413 is a prime.

It is a super-2 number, since 2×641417² = 822831535778, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641392 and 641401.

It is not an unprimeable number, because it can be changed into a prime (641411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45809 + ... + 45822.

It is an arithmetic number, because the mean of its divisors is an integer number (183264).

2⁶⁴¹⁴¹⁷ is an apocalyptic number.

It is an amenable number.

641417 is a deficient number, since it is larger than the sum of its proper divisors (91639).

641417 is an equidigital number, since it uses as much as digits as its factorization.

641417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91638.

The product of its digits is 672, while the sum is 23.

The square root of 641417 is about 800.8851353346. The cubic root of 641417 is about 86.2409414277.

The spelling of 641417 in words is "six hundred forty-one thousand, four hundred seventeen".