671830051 has 4 divisors (see below), whose sum is σ = 678756232. Its totient is φ = 664903872.

The previous prime is 671830043. The next prime is 671830099. The reversal of 671830051 is 150038176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671830051 - 2³ = 671830043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671829995 and 671830022.

It is not an unprimeable number, because it can be changed into a prime (671830001) 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, 3462945 + ... + 3463138.

It is an arithmetic number, because the mean of its divisors is an integer number (169689058).

Almost surely, 2^671830051 is an apocalyptic number.

671830051 is a deficient number, since it is larger than the sum of its proper divisors (6926181).

671830051 is an equidigital number, since it uses as much as digits as its factorization.

671830051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926180.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 671830051 is about 25919.6846238530. The cubic root of 671830051 is about 875.8299829725.

The spelling of 671830051 in words is "six hundred seventy-one million, eight hundred thirty thousand, fifty-one".