1797124427 has 4 divisors (see below), whose sum is σ = 2053856496. Its totient is φ = 1540392360.

The previous prime is 1797124421. The next prime is 1797124453. The reversal of 1797124427 is 7244217971.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1797124427 - 2¹⁶ = 1797058891 is a prime.

It is a super-2 number, since 2×1797124427² = 6459312412240156658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1797124421) 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, 128366024 + ... + 128366037.

It is an arithmetic number, because the mean of its divisors is an integer number (513464124).

Almost surely, 2^1797124427 is an apocalyptic number.

1797124427 is a deficient number, since it is larger than the sum of its proper divisors (256732069).

1797124427 is an equidigital number, since it uses as much as digits as its factorization.

1797124427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256732068.

The product of its digits is 197568, while the sum is 44.

The square root of 1797124427 is about 42392.5043728252. The cubic root of 1797124427 is about 1215.7922829044.

The spelling of 1797124427 in words is "one billion, seven hundred ninety-seven million, one hundred twenty-four thousand, four hundred twenty-seven".