3699664693 has 2 divisors, whose sum is σ = 3699664694. Its totient is φ = 3699664692.

The previous prime is 3699664691. The next prime is 3699664697. The reversal of 3699664693 is 3964669963.

3699664693 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., 3558957649 + 140707044 = 59657^2 + 11862^2 .

It is an emirp because it is prime and its reverse (3964669963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3699664693 - 2¹ = 3699664691 is a prime.

Together with 3699664691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3699664691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849832346 + 1849832347.

It is an arithmetic number, because the mean of its divisors is an integer number (1849832347).

Almost surely, 2^3699664693 is an apocalyptic number.

It is an amenable number.

3699664693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3699664693 is an equidigital number, since it uses as much as digits as its factorization.

3699664693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34012224, while the sum is 61.

The square root of 3699664693 is about 60824.8690339733. The cubic root of 3699664693 is about 1546.6336504907.

The spelling of 3699664693 in words is "three billion, six hundred ninety-nine million, six hundred sixty-four thousand, six hundred ninety-three".