1797374069 has 4 divisors (see below), whose sum is σ = 1803770700. Its totient is φ = 1790977440.

The previous prime is 1797374063. The next prime is 1797374087. The reversal of 1797374069 is 9604737971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9604737971 = 59 ⋅162792169.

It can be written as a sum of positive squares in 2 ways, for example, as 1415640625 + 381733444 = 37625^2 + 19538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797374069 - 2²⁸ = 1528938613 is a prime.

It is a super-2 number, since 2×1797374069² = 6461107087827233522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1797374069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797374063) 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, 3197894 + ... + 3198455.

It is an arithmetic number, because the mean of its divisors is an integer number (450942675).

Almost surely, 2^1797374069 is an apocalyptic number.

It is an amenable number.

1797374069 is a deficient number, since it is larger than the sum of its proper divisors (6396631).

1797374069 is an equidigital number, since it uses as much as digits as its factorization.

1797374069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396630.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The square root of 1797374069 is about 42395.4486826121. The cubic root of 1797374069 is about 1215.8485763103.

The spelling of 1797374069 in words is "one billion, seven hundred ninety-seven million, three hundred seventy-four thousand, sixty-nine".