1893538349 has 2 divisors, whose sum is σ = 1893538350. Its totient is φ = 1893538348.

The previous prime is 1893538337. The next prime is 1893538363. The reversal of 1893538349 is 9438353981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1839809449 + 53728900 = 42893^2 + 7330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1893538349 - 2⁴ = 1893538333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1893538349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1893538399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 946769174 + 946769175.

It is an arithmetic number, because the mean of its divisors is an integer number (946769175).

Almost surely, 2^1893538349 is an apocalyptic number.

It is an amenable number.

1893538349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1893538349 is an equidigital number, since it uses as much as digits as its factorization.

1893538349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 53.

The square root of 1893538349 is about 43514.8060894220. The cubic root of 1893538349 is about 1237.1566722162.

The spelling of 1893538349 in words is "one billion, eight hundred ninety-three million, five hundred thirty-eight thousand, three hundred forty-nine".