641192717 has 8 divisors (see below), whose sum is σ = 700011072. Its totient is φ = 582462400.

The previous prime is 641192663. The next prime is 641192729. The reversal of 641192717 is 717291146.

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

It is a cyclic number.

It is not a de Polignac number, because 641192717 - 2¹² = 641188621 is a prime.

It is a super-2 number, since 2×641192717² = 822256200667684178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641192017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6284 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (87501384).

Almost surely, 2^641192717 is an apocalyptic number.

It is an amenable number.

641192717 is a deficient number, since it is larger than the sum of its proper divisors (58818355).

641192717 is a wasteful number, since it uses less digits than its factorization.

641192717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44019.

The product of its digits is 21168, while the sum is 38.

The square root of 641192717 is about 25321.7834482487. The cubic root of 641192717 is about 862.3088835667.

The spelling of 641192717 in words is "six hundred forty-one million, one hundred ninety-two thousand, seven hundred seventeen".