1797643105 has 16 divisors (see below), whose sum is σ = 2278140480. Its totient is φ = 1357964352.

The previous prime is 1797643069. The next prime is 1797643117. The reversal of 1797643105 is 5013467971.

It is not a de Polignac number, because 1797643105 - 2¹¹ = 1797641057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1654 + ... + 59983.

It is an arithmetic number, because the mean of its divisors is an integer number (142383780).

Almost surely, 2^1797643105 is an apocalyptic number.

It is an amenable number.

1797643105 is a deficient number, since it is larger than the sum of its proper divisors (480497375).

1797643105 is a wasteful number, since it uses less digits than its factorization.

1797643105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61968.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 1797643105 is about 42398.6214988176. The cubic root of 1797643105 is about 1215.9092371606.

The spelling of 1797643105 in words is "one billion, seven hundred ninety-seven million, six hundred forty-three thousand, one hundred five".