671030879 has 2 divisors, whose sum is σ = 671030880. Its totient is φ = 671030878.

The previous prime is 671030849. The next prime is 671030881. The reversal of 671030879 is 978030176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671030879 - 2²⁸ = 402595423 is a prime.

It is a Sophie Germain prime.

Together with 671030881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671030839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335515439 + 335515440.

It is an arithmetic number, because the mean of its divisors is an integer number (335515440).

Almost surely, 2^671030879 is an apocalyptic number.

671030879 is a deficient number, since it is larger than the sum of its proper divisors (1).

671030879 is an equidigital number, since it uses as much as digits as its factorization.

671030879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 671030879 is about 25904.2637224068. The cubic root of 671030879 is about 875.4825654880.

The spelling of 671030879 in words is "six hundred seventy-one million, thirty thousand, eight hundred seventy-nine".