671852651 has 2 divisors, whose sum is σ = 671852652. Its totient is φ = 671852650.

The previous prime is 671852591. The next prime is 671852659. The reversal of 671852651 is 156258176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671852651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671852599 and 671852608.

It is not a weakly prime, because it can be changed into another prime (671852659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335926325 + 335926326.

It is an arithmetic number, because the mean of its divisors is an integer number (335926326).

Almost surely, 2^671852651 is an apocalyptic number.

671852651 is a deficient number, since it is larger than the sum of its proper divisors (1).

671852651 is an equidigital number, since it uses as much as digits as its factorization.

671852651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 671852651 is about 25920.1205822812. The cubic root of 671852651 is about 875.8398036782.

The spelling of 671852651 in words is "six hundred seventy-one million, eight hundred fifty-two thousand, six hundred fifty-one".