1634272399 has 2 divisors, whose sum is σ = 1634272400. Its totient is φ = 1634272398.

The previous prime is 1634272369. The next prime is 1634272417. The reversal of 1634272399 is 9932724361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1634272399 - 2¹³ = 1634264207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1634272369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817136199 + 817136200.

It is an arithmetic number, because the mean of its divisors is an integer number (817136200).

Almost surely, 2^1634272399 is an apocalyptic number.

1634272399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634272399 is an equidigital number, since it uses as much as digits as its factorization.

1634272399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 1634272399 is about 40426.1350984731. The cubic root of 1634272399 is about 1177.8992592779.

The spelling of 1634272399 in words is "one billion, six hundred thirty-four million, two hundred seventy-two thousand, three hundred ninety-nine".