1896545047 has 2 divisors, whose sum is σ = 1896545048. Its totient is φ = 1896545046.

The previous prime is 1896545039. The next prime is 1896545087. The reversal of 1896545047 is 7405456981.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1896545047 - 2³ = 1896545039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1896545087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948272523 + 948272524.

It is an arithmetic number, because the mean of its divisors is an integer number (948272524).

Almost surely, 2^1896545047 is an apocalyptic number.

1896545047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896545047 is an equidigital number, since it uses as much as digits as its factorization.

1896545047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 1896545047 is about 43549.3403738794. The cubic root of 1896545047 is about 1237.8111417346.

The spelling of 1896545047 in words is "one billion, eight hundred ninety-six million, five hundred forty-five thousand, forty-seven".