670772671 has 2 divisors, whose sum is σ = 670772672. Its totient is φ = 670772670.

The previous prime is 670772629. The next prime is 670772677. The reversal of 670772671 is 176277076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670772671 - 2¹⁵ = 670739903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670772677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335386335 + 335386336.

It is an arithmetic number, because the mean of its divisors is an integer number (335386336).

Almost surely, 2^670772671 is an apocalyptic number.

670772671 is a deficient number, since it is larger than the sum of its proper divisors (1).

670772671 is an equidigital number, since it uses as much as digits as its factorization.

670772671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 670772671 is about 25899.2793529086. The cubic root of 670772671 is about 875.3702578876.

The spelling of 670772671 in words is "six hundred seventy million, seven hundred seventy-two thousand, six hundred seventy-one".