1836961 has 6 divisors (see below), whose sum is σ = 2136930. Its totient is φ = 1574496.

The previous prime is 1836959. The next prime is 1836971. The reversal of 1836961 is 1696381.

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 30625 = 1344^2 + 175^2 .

It is not a de Polignac number, because 1836961 - 2¹ = 1836959 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1836911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18696 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (356155).

2^1836961 is an apocalyptic number.

It is an amenable number.

1836961 is a deficient number, since it is larger than the sum of its proper divisors (299969).

1836961 is an equidigital number, since it uses as much as digits as its factorization.

1836961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37503 (or 37496 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 1836961 is about 1355.3453434457. The cubic root of 1836961 is about 122.4710135498.

The spelling of 1836961 in words is "one million, eight hundred thirty-six thousand, nine hundred sixty-one".