670018477 has 2 divisors, whose sum is σ = 670018478. Its totient is φ = 670018476.

The previous prime is 670018457. The next prime is 670018487. The reversal of 670018477 is 774810076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430728516 + 239289961 = 20754^2 + 15469^2 .

It is a cyclic number.

It is not a de Polignac number, because 670018477 - 2¹¹ = 670016429 is a prime.

It is equal to p_34779226 and since 670018477 and 34779226 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670018457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335009238 + 335009239.

It is an arithmetic number, because the mean of its divisors is an integer number (335009239).

Almost surely, 2^670018477 is an apocalyptic number.

It is an amenable number.

670018477 is a deficient number, since it is larger than the sum of its proper divisors (1).

670018477 is an equidigital number, since it uses as much as digits as its factorization.

670018477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 670018477 is about 25884.7151230219. The cubic root of 670018477 is about 875.0420559922.

The spelling of 670018477 in words is "six hundred seventy million, eighteen thousand, four hundred seventy-seven".