671007023 has 2 divisors, whose sum is σ = 671007024. Its totient is φ = 671007022.

The previous prime is 671007011. The next prime is 671007041. The reversal of 671007023 is 320700176.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671007023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671006983 and 671007001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671007053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335503511 + 335503512.

It is an arithmetic number, because the mean of its divisors is an integer number (335503512).

Almost surely, 2^671007023 is an apocalyptic number.

671007023 is a deficient number, since it is larger than the sum of its proper divisors (1).

671007023 is an equidigital number, since it uses as much as digits as its factorization.

671007023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 671007023 is about 25903.8032535765. The cubic root of 671007023 is about 875.4721905260.

Adding to 671007023 its reverse (320700176), we get a palindrome (991707199).

The spelling of 671007023 in words is "six hundred seventy-one million, seven thousand, twenty-three".