1896397427 has 2 divisors, whose sum is σ = 1896397428. Its totient is φ = 1896397426.

The previous prime is 1896397409. The next prime is 1896397471. The reversal of 1896397427 is 7247936981.

It is a weak prime.

It is an emirp because it is prime and its reverse (7247936981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1896397427 - 2¹⁴ = 1896381043 is a prime.

It is a super-2 number, since 2×1896397427² = 7192646402264440658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1896393427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948198713 + 948198714.

It is an arithmetic number, because the mean of its divisors is an integer number (948198714).

Almost surely, 2^1896397427 is an apocalyptic number.

1896397427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896397427 is an equidigital number, since it uses as much as digits as its factorization.

1896397427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 1896397427 is about 43547.6454817020. The cubic root of 1896397427 is about 1237.7790253655.

The spelling of 1896397427 in words is "one billion, eight hundred ninety-six million, three hundred ninety-seven thousand, four hundred twenty-seven".