1798749371 has 4 divisors (see below), whose sum is σ = 1798834200. Its totient is φ = 1798664544.

The previous prime is 1798749317. The next prime is 1798749391. The reversal of 1798749371 is 1739478971.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1798749371 - 2²⁶ = 1731640507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798749391) 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, 20540 + ... + 63398.

It is an arithmetic number, because the mean of its divisors is an integer number (449708550).

Almost surely, 2^1798749371 is an apocalyptic number.

1798749371 is a deficient number, since it is larger than the sum of its proper divisors (84829).

1798749371 is an equidigital number, since it uses as much as digits as its factorization.

1798749371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84828.

The product of its digits is 2667168, while the sum is 56.

The square root of 1798749371 is about 42411.6655060845. The cubic root of 1798749371 is about 1216.1586087240.

The spelling of 1798749371 in words is "one billion, seven hundred ninety-eight million, seven hundred forty-nine thousand, three hundred seventy-one".