670898827 has 2 divisors, whose sum is σ = 670898828. Its totient is φ = 670898826.

The previous prime is 670898803. The next prime is 670898831. The reversal of 670898827 is 728898076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670898827 - 2⁷ = 670898699 is a prime.

It is not a weakly prime, because it can be changed into another prime (670898927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335449413 + 335449414.

It is an arithmetic number, because the mean of its divisors is an integer number (335449414).

Almost surely, 2^670898827 is an apocalyptic number.

670898827 is a deficient number, since it is larger than the sum of its proper divisors (1).

670898827 is an equidigital number, since it uses as much as digits as its factorization.

670898827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 670898827 is about 25901.7147501859. The cubic root of 670898827 is about 875.4251330550.

The spelling of 670898827 in words is "six hundred seventy million, eight hundred ninety-eight thousand, eight hundred twenty-seven".