670472879 has 2 divisors, whose sum is σ = 670472880. Its totient is φ = 670472878.

The previous prime is 670472863. The next prime is 670472909. The reversal of 670472879 is 978274076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670472879 - 2⁴ = 670472863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670472849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335236439 + 335236440.

It is an arithmetic number, because the mean of its divisors is an integer number (335236440).

Almost surely, 2^670472879 is an apocalyptic number.

670472879 is a deficient number, since it is larger than the sum of its proper divisors (1).

670472879 is an equidigital number, since it uses as much as digits as its factorization.

670472879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 670472879 is about 25893.4910547033. The cubic root of 670472879 is about 875.2398271582.

The spelling of 670472879 in words is "six hundred seventy million, four hundred seventy-two thousand, eight hundred seventy-nine".