671169801 has 4 divisors (see below), whose sum is σ = 894893072. Its totient is φ = 447446532.

The previous prime is 671169773. The next prime is 671169803. The reversal of 671169801 is 108961176.

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.

It is not a de Polignac number, because 671169801 - 2⁵ = 671169769 is a prime.

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 671169801.

It is not an unprimeable number, because it can be changed into a prime (671169803) 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, 111861631 + ... + 111861636.

It is an arithmetic number, because the mean of its divisors is an integer number (223723268).

Almost surely, 2^671169801 is an apocalyptic number.

It is an amenable number.

671169801 is a deficient number, since it is larger than the sum of its proper divisors (223723271).

671169801 is a wasteful number, since it uses less digits than its factorization.

671169801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223723270.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 671169801 is about 25906.9450341023. The cubic root of 671169801 is about 875.5429777088.

The spelling of 671169801 in words is "six hundred seventy-one million, one hundred sixty-nine thousand, eight hundred one".