1849457 has 2 divisors, whose sum is σ = 1849458. Its totient is φ = 1849456.

The previous prime is 1849451. The next prime is 1849483. The reversal of 1849457 is 7549481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 776161 = 1036^2 + 881^2 .

It is an emirp because it is prime and its reverse (7549481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1849457 - 2⁸ = 1849201 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1849457.

It is not a weakly prime, because it can be changed into another prime (1849451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924728 + 924729.

It is an arithmetic number, because the mean of its divisors is an integer number (924729).

2^1849457 is an apocalyptic number.

It is an amenable number.

1849457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1849457 is an equidigital number, since it uses as much as digits as its factorization.

1849457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 1849457 is about 1359.9474254544. The cubic root of 1849457 is about 122.7480908609.

The spelling of 1849457 in words is "one million, eight hundred forty-nine thousand, four hundred fifty-seven".