699160997 has 2 divisors, whose sum is σ = 699160998. Its totient is φ = 699160996.

The previous prime is 699160967. The next prime is 699161009. The reversal of 699160997 is 799061996.

It is a happy number.

699160997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563065441 + 136095556 = 23729^2 + 11666^2 .

It is a cyclic number.

It is not a de Polignac number, because 699160997 - 2¹² = 699156901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699160907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349580498 + 349580499.

It is an arithmetic number, because the mean of its divisors is an integer number (349580499).

Almost surely, 2^699160997 is an apocalyptic number.

It is an amenable number.

699160997 is a deficient number, since it is larger than the sum of its proper divisors (1).

699160997 is an equidigital number, since it uses as much as digits as its factorization.

699160997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 699160997 is about 26441.6526904050. The cubic root of 699160997 is about 887.5491198628.

Subtracting 699160997 from its reverse (799061996), we obtain a palindrome (99900999).

The spelling of 699160997 in words is "six hundred ninety-nine million, one hundred sixty thousand, nine hundred ninety-seven".