679571701 has 2 divisors, whose sum is σ = 679571702. Its totient is φ = 679571700.

The previous prime is 679571591. The next prime is 679571723. The reversal of 679571701 is 107175976.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665124100 + 14447601 = 25790^2 + 3801^2 .

It is a cyclic number.

It is not a de Polignac number, because 679571701 - 2⁷ = 679571573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679571201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339785850 + 339785851.

It is an arithmetic number, because the mean of its divisors is an integer number (339785851).

Almost surely, 2^679571701 is an apocalyptic number.

It is an amenable number.

679571701 is a deficient number, since it is larger than the sum of its proper divisors (1).

679571701 is an equidigital number, since it uses as much as digits as its factorization.

679571701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92610, while the sum is 43.

The square root of 679571701 is about 26068.5960688335. The cubic root of 679571701 is about 879.1812723473.

The spelling of 679571701 in words is "six hundred seventy-nine million, five hundred seventy-one thousand, seven hundred one".