670204807 has 2 divisors, whose sum is σ = 670204808. Its totient is φ = 670204806.

The previous prime is 670204783. The next prime is 670204811. The reversal of 670204807 is 708402076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670204807 - 2⁷ = 670204679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670204817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335102403 + 335102404.

It is an arithmetic number, because the mean of its divisors is an integer number (335102404).

Almost surely, 2^670204807 is an apocalyptic number.

670204807 is a deficient number, since it is larger than the sum of its proper divisors (1).

670204807 is an equidigital number, since it uses as much as digits as its factorization.

670204807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 670204807 is about 25888.3141011538. The cubic root of 670204807 is about 875.1231639417.

The spelling of 670204807 in words is "six hundred seventy million, two hundred four thousand, eight hundred seven".