1894913 has 2 divisors, whose sum is σ = 1894914. Its totient is φ = 1894912.

The previous prime is 1894883. The next prime is 1894931. The reversal of 1894913 is 3194981.

Together with next prime (1894931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1329409 + 565504 = 1153^2 + 752^2 .

It is an emirp because it is prime and its reverse (3194981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1894913 - 2¹⁸ = 1632769 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1894933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 947456 + 947457.

It is an arithmetic number, because the mean of its divisors is an integer number (947457).

2^1894913 is an apocalyptic number.

It is an amenable number.

1894913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1894913 is an equidigital number, since it uses as much as digits as its factorization.

1894913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 1894913 is about 1376.5583896079. The cubic root of 1894913 is about 123.7455979116.

The spelling of 1894913 in words is "one million, eight hundred ninety-four thousand, nine hundred thirteen".