1634048709 has 4 divisors (see below), whose sum is σ = 2178731616. Its totient is φ = 1089365804.

The previous prime is 1634048699. The next prime is 1634048737. The reversal of 1634048709 is 9078404361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1634048709 - 2⁹ = 1634048197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634049709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272341449 + ... + 272341454.

It is an arithmetic number, because the mean of its divisors is an integer number (544682904).

Almost surely, 2^1634048709 is an apocalyptic number.

It is an amenable number.

1634048709 is a deficient number, since it is larger than the sum of its proper divisors (544682907).

1634048709 is an equidigital number, since it uses as much as digits as its factorization.

1634048709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544682906.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1634048709 is about 40423.3683529713. The cubic root of 1634048709 is about 1177.8455154207.

The spelling of 1634048709 in words is "one billion, six hundred thirty-four million, forty-eight thousand, seven hundred nine".