699247001 has 2 divisors, whose sum is σ = 699247002. Its totient is φ = 699247000.

The previous prime is 699246991. The next prime is 699247013. The reversal of 699247001 is 100742996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691690000 + 7557001 = 26300^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 699247001 - 2²⁶ = 632138137 is a prime.

It is not a weakly prime, because it can be changed into another prime (699247301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349623500 + 349623501.

It is an arithmetic number, because the mean of its divisors is an integer number (349623501).

Almost surely, 2^699247001 is an apocalyptic number.

It is an amenable number.

699247001 is a deficient number, since it is larger than the sum of its proper divisors (1).

699247001 is an equidigital number, since it uses as much as digits as its factorization.

699247001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 699247001 is about 26443.2789381347. The cubic root of 699247001 is about 887.5855109302.

Adding to 699247001 its reverse (100742996), we get a palindrome (799989997).

The spelling of 699247001 in words is "six hundred ninety-nine million, two hundred forty-seven thousand, one".