1896684469 has 2 divisors, whose sum is σ = 1896684470. Its totient is φ = 1896684468.

The previous prime is 1896684431. The next prime is 1896684479. The reversal of 1896684469 is 9644866981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1467656100 + 429028369 = 38310^2 + 20713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1896684469 - 2¹¹ = 1896682421 is a prime.

It is a super-2 number, since 2×1896684469² = 7194823949891623922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1896684479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948342234 + 948342235.

It is an arithmetic number, because the mean of its divisors is an integer number (948342235).

Almost surely, 2^1896684469 is an apocalyptic number.

It is an amenable number.

1896684469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896684469 is an equidigital number, since it uses as much as digits as its factorization.

1896684469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 61.

The square root of 1896684469 is about 43550.9410805323. The cubic root of 1896684469 is about 1237.8414730075.

The spelling of 1896684469 in words is "one billion, eight hundred ninety-six million, six hundred eighty-four thousand, four hundred sixty-nine".