1849894037 has 2 divisors, whose sum is σ = 1849894038. Its totient is φ = 1849894036.

The previous prime is 1849894027. The next prime is 1849894043. The reversal of 1849894037 is 7304989481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1846764676 + 3129361 = 42974^2 + 1769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1849894037 - 2²² = 1845699733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1849894037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1849894027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924947018 + 924947019.

It is an arithmetic number, because the mean of its divisors is an integer number (924947019).

Almost surely, 2^1849894037 is an apocalyptic number.

It is an amenable number.

1849894037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1849894037 is an equidigital number, since it uses as much as digits as its factorization.

1849894037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 1849894037 is about 43010.3945227197. The cubic root of 1849894037 is about 1227.5775878550.

The spelling of 1849894037 in words is "one billion, eight hundred forty-nine million, eight hundred ninety-four thousand, thirty-seven".