670439611 has 2 divisors, whose sum is σ = 670439612. Its totient is φ = 670439610.

The previous prime is 670439579. The next prime is 670439633. The reversal of 670439611 is 116934076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670439611 - 2⁵ = 670439579 is a prime.

It is not a weakly prime, because it can be changed into another prime (670439641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335219805 + 335219806.

It is an arithmetic number, because the mean of its divisors is an integer number (335219806).

Almost surely, 2^670439611 is an apocalyptic number.

670439611 is a deficient number, since it is larger than the sum of its proper divisors (1).

670439611 is an equidigital number, since it uses as much as digits as its factorization.

670439611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 670439611 is about 25892.8486459099. The cubic root of 670439611 is about 875.2253508281.

The spelling of 670439611 in words is "six hundred seventy million, four hundred thirty-nine thousand, six hundred eleven".