1634313797 has 2 divisors, whose sum is σ = 1634313798. Its totient is φ = 1634313796.

The previous prime is 1634313727. The next prime is 1634313817. The reversal of 1634313797 is 7973134361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134746596 + 499567201 = 33686^2 + 22351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634313797 - 2²⁴ = 1617536581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1634313727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817156898 + 817156899.

It is an arithmetic number, because the mean of its divisors is an integer number (817156899).

Almost surely, 2^1634313797 is an apocalyptic number.

It is an amenable number.

1634313797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634313797 is an equidigital number, since it uses as much as digits as its factorization.

1634313797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 1634313797 is about 40426.6471154856. The cubic root of 1634313797 is about 1177.9092050417.

The spelling of 1634313797 in words is "one billion, six hundred thirty-four million, three hundred thirteen thousand, seven hundred ninety-seven".