617768201 has 8 divisors (see below), whose sum is σ = 648233280. Its totient is φ = 587603632.

The previous prime is 617768191. The next prime is 617768213. The reversal of 617768201 is 102867716.

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

It is a de Polignac number, because none of the positive numbers 2^k-617768201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617768101) 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, 70910 + ... + 79143.

It is an arithmetic number, because the mean of its divisors is an integer number (81029160).

Almost surely, 2^617768201 is an apocalyptic number.

It is an amenable number.

617768201 is a deficient number, since it is larger than the sum of its proper divisors (30465079).

617768201 is a wasteful number, since it uses less digits than its factorization.

617768201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150255.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 617768201 is about 24854.9431904400. The cubic root of 617768201 is about 851.6775180664.

The spelling of 617768201 in words is "six hundred seventeen million, seven hundred sixty-eight thousand, two hundred one".