1896091047 has 12 divisors (see below), whose sum is σ = 2739220744. Its totient is φ = 1263865680.

The previous prime is 1896091033. The next prime is 1896091049. The reversal of 1896091047 is 7401906981.

It is a happy number.

It is not a de Polignac number, because 1896091047 - 2⁴ = 1896091031 is a prime.

It is a super-2 number, since 2×1896091047² = 7190322517027112418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1896090993 and 1896091011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896091049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68688 + ... + 92250.

Almost surely, 2^1896091047 is an apocalyptic number.

1896091047 is a deficient number, since it is larger than the sum of its proper divisors (843129697).

1896091047 is a wasteful number, since it uses less digits than its factorization.

1896091047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32510 (or 32507 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1896091047 is about 43544.1275834067. The cubic root of 1896091047 is about 1237.7123636773.

The spelling of 1896091047 in words is "one billion, eight hundred ninety-six million, ninety-one thousand, forty-seven".