699681701 has 2 divisors, whose sum is σ = 699681702. Its totient is φ = 699681700.

The previous prime is 699681691. The next prime is 699681727. The reversal of 699681701 is 107186996.

699681701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391644100 + 308037601 = 19790^2 + 17551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699681701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699681761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349840850 + 349840851.

It is an arithmetic number, because the mean of its divisors is an integer number (349840851).

Almost surely, 2^699681701 is an apocalyptic number.

It is an amenable number.

699681701 is a deficient number, since it is larger than the sum of its proper divisors (1).

699681701 is an equidigital number, since it uses as much as digits as its factorization.

699681701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 699681701 is about 26451.4971409937. The cubic root of 699681701 is about 887.7694008838.

The spelling of 699681701 in words is "six hundred ninety-nine million, six hundred eighty-one thousand, seven hundred one".