1798147169 has 24 divisors (see below), whose sum is σ = 2283540840. Its totient is φ = 1403184384.

The previous prime is 1798147147. The next prime is 1798147193. The reversal of 1798147169 is 9617418971.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1658944 + 1796488225 = 1288^2 + 42385^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1798147169 is a prime.

It is a super-2 number, since 2×1798147169² = 6466666482765429122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1798147169.

It is not an unprimeable number, because it can be changed into a prime (1798147969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27167 + ... + 65835.

It is an arithmetic number, because the mean of its divisors is an integer number (95147535).

Almost surely, 2^1798147169 is an apocalyptic number.

It is an amenable number.

1798147169 is a deficient number, since it is larger than the sum of its proper divisors (485393671).

1798147169 is a wasteful number, since it uses less digits than its factorization.

1798147169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38769 (or 38762 counting only the distinct ones).

The product of its digits is 762048, while the sum is 53.

The square root of 1798147169 is about 42404.5654263783. The cubic root of 1798147169 is about 1216.0228746220.

The spelling of 1798147169 in words is "one billion, seven hundred ninety-eight million, one hundred forty-seven thousand, one hundred sixty-nine".