671672577 has 8 divisors (see below), whose sum is σ = 896084800. Its totient is φ = 447521040.

The previous prime is 671672549. The next prime is 671672593. The reversal of 671672577 is 775276176.

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

It is not a de Polignac number, because 671672577 - 2¹⁸ = 671410433 is a prime.

It is a super-2 number, since 2×671672577² = 902288101387641858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671672377) 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, 59077 + ... + 69522.

It is an arithmetic number, because the mean of its divisors is an integer number (112010600).

Almost surely, 2^671672577 is an apocalyptic number.

It is an amenable number.

671672577 is a deficient number, since it is larger than the sum of its proper divisors (224412223).

671672577 is a wasteful number, since it uses less digits than its factorization.

671672577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130343.

The product of its digits is 864360, while the sum is 48.

The square root of 671672577 is about 25916.6467159623. The cubic root of 671672577 is about 875.7615473972.

The spelling of 671672577 in words is "six hundred seventy-one million, six hundred seventy-two thousand, five hundred seventy-seven".