670306451 has 2 divisors, whose sum is σ = 670306452. Its totient is φ = 670306450.

The previous prime is 670306363. The next prime is 670306471. The reversal of 670306451 is 154603076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670306451 is a prime.

It is not a weakly prime, because it can be changed into another prime (670306471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335153225 + 335153226.

It is an arithmetic number, because the mean of its divisors is an integer number (335153226).

Almost surely, 2^670306451 is an apocalyptic number.

670306451 is a deficient number, since it is larger than the sum of its proper divisors (1).

670306451 is an equidigital number, since it uses as much as digits as its factorization.

670306451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 670306451 is about 25890.2771518576. The cubic root of 670306451 is about 875.1674024200.

The spelling of 670306451 in words is "six hundred seventy million, three hundred six thousand, four hundred fifty-one".