3634816897 has 2 divisors, whose sum is σ = 3634816898. Its totient is φ = 3634816896.

The previous prime is 3634816879. The next prime is 3634816967. The reversal of 3634816897 is 7986184363.

It is a happy number.

3634816897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (3634816879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3203673201 + 431143696 = 56601^2 + 20764^2 .

It is a cyclic number.

It is not a de Polignac number, because 3634816897 - 2¹¹ = 3634814849 is a prime.

It is not a weakly prime, because it can be changed into another prime (3634816807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1817408448 + 1817408449.

It is an arithmetic number, because the mean of its divisors is an integer number (1817408449).

Almost surely, 2^3634816897 is an apocalyptic number.

It is an amenable number.

3634816897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3634816897 is an equidigital number, since it uses as much as digits as its factorization.

3634816897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 55.

The square root of 3634816897 is about 60289.4426661916. The cubic root of 3634816897 is about 1537.5438580214.

The spelling of 3634816897 in words is "three billion, six hundred thirty-four million, eight hundred sixteen thousand, eight hundred ninety-seven".