1838761 has 2 divisors, whose sum is σ = 1838762. Its totient is φ = 1838760.

The previous prime is 1838747. The next prime is 1838773. The reversal of 1838761 is 1678381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1838736 + 25 = 1356^2 + 5^2 .

It is an emirp because it is prime and its reverse (1678381) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838761 is a prime.

It is an alternating number because its digits alternate between odd and even.

1838761 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1838741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919380 + 919381.

It is an arithmetic number, because the mean of its divisors is an integer number (919381).

2^1838761 is an apocalyptic number.

It is an amenable number.

1838761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838761 is an equidigital number, since it uses as much as digits as its factorization.

1838761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 1838761 is about 1356.0092182578. The cubic root of 1838761 is about 122.5110027602.

The spelling of 1838761 in words is "one million, eight hundred thirty-eight thousand, seven hundred sixty-one".