1699368497 has 2 divisors, whose sum is σ = 1699368498. Its totient is φ = 1699368496.

The previous prime is 1699368431. The next prime is 1699368527. The reversal of 1699368497 is 7948639961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1674528241 + 24840256 = 40921^2 + 4984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1699368497 - 2²⁸ = 1430933041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1699368397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849684248 + 849684249.

It is an arithmetic number, because the mean of its divisors is an integer number (849684249).

Almost surely, 2^1699368497 is an apocalyptic number.

It is an amenable number.

1699368497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699368497 is an equidigital number, since it uses as much as digits as its factorization.

1699368497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 1699368497 is about 41223.3974461106. The cubic root of 1699368497 is about 1193.3353916214.

The spelling of 1699368497 in words is "one billion, six hundred ninety-nine million, three hundred sixty-eight thousand, four hundred ninety-seven".