1634485493 has 2 divisors, whose sum is σ = 1634485494. Its totient is φ = 1634485492.

The previous prime is 1634485453. The next prime is 1634485529. The reversal of 1634485493 is 3945844361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1608250609 + 26234884 = 40103^2 + 5122^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634485493 - 2⁶ = 1634485429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1634485453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817242746 + 817242747.

It is an arithmetic number, because the mean of its divisors is an integer number (817242747).

Almost surely, 2^1634485493 is an apocalyptic number.

It is an amenable number.

1634485493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634485493 is an equidigital number, since it uses as much as digits as its factorization.

1634485493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 47.

The square root of 1634485493 is about 40428.7706095548. The cubic root of 1634485493 is about 1177.9504527746.

The spelling of 1634485493 in words is "one billion, six hundred thirty-four million, four hundred eighty-five thousand, four hundred ninety-three".