1814883797 has 2 divisors, whose sum is σ = 1814883798. Its totient is φ = 1814883796.

The previous prime is 1814883769. The next prime is 1814883869. The reversal of 1814883797 is 7973884181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1333783441 + 481100356 = 36521^2 + 21934^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814883797 - 2¹² = 1814879701 is a prime.

It is a super-2 number, since 2×1814883797² = 6587606393226274418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814883767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907441898 + 907441899.

It is an arithmetic number, because the mean of its divisors is an integer number (907441899).

Almost surely, 2^1814883797 is an apocalyptic number.

It is an amenable number.

1814883797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814883797 is an equidigital number, since it uses as much as digits as its factorization.

1814883797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 56.

The square root of 1814883797 is about 42601.4529916528. The cubic root of 1814883797 is about 1219.7840245203.

The spelling of 1814883797 in words is "one billion, eight hundred fourteen million, eight hundred eighty-three thousand, seven hundred ninety-seven".