670311407 has 2 divisors, whose sum is σ = 670311408. Its totient is φ = 670311406.

The previous prime is 670311353. The next prime is 670311427. The reversal of 670311407 is 704113076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670311407 - 2¹⁰ = 670310383 is a prime.

It is a super-4 number, since 4×670311407⁴ (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 670311407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670311427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335155703 + 335155704.

It is an arithmetic number, because the mean of its divisors is an integer number (335155704).

Almost surely, 2^670311407 is an apocalyptic number.

670311407 is a deficient number, since it is larger than the sum of its proper divisors (1).

670311407 is an equidigital number, since it uses as much as digits as its factorization.

670311407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 670311407 is about 25890.3728632865. The cubic root of 670311407 is about 875.1695593036.

The spelling of 670311407 in words is "six hundred seventy million, three hundred eleven thousand, four hundred seven".