1896732913 has 2 divisors, whose sum is σ = 1896732914. Its totient is φ = 1896732912.

The previous prime is 1896732839. The next prime is 1896732917. The reversal of 1896732913 is 3192376981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1877662224 + 19070689 = 43332^2 + 4367^2 .

It is an emirp because it is prime and its reverse (3192376981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1896732913 - 2¹³ = 1896724721 is a prime.

It is a super-3 number, since 3×1896732913³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1896732917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948366456 + 948366457.

It is an arithmetic number, because the mean of its divisors is an integer number (948366457).

Almost surely, 2^1896732913 is an apocalyptic number.

It is an amenable number.

1896732913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896732913 is an equidigital number, since it uses as much as digits as its factorization.

1896732913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 1896732913 is about 43551.4972532518. The cubic root of 1896732913 is about 1237.8520116575.

The spelling of 1896732913 in words is "one billion, eight hundred ninety-six million, seven hundred thirty-two thousand, nine hundred thirteen".