1864841 has 4 divisors (see below), whose sum is σ = 2034384. Its totient is φ = 1695300.

The previous prime is 1864823. The next prime is 1864847. The reversal of 1864841 is 1484681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1864841 - 2¹⁸ = 1602697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1864798 and 1864807.

It is not an unprimeable number, because it can be changed into a prime (1864847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84755 + ... + 84776.

It is an arithmetic number, because the mean of its divisors is an integer number (508596).

2^1864841 is an apocalyptic number.

1864841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1864841 is a deficient number, since it is larger than the sum of its proper divisors (169543).

1864841 is a wasteful number, since it uses less digits than its factorization.

1864841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169542.

The product of its digits is 6144, while the sum is 32.

The square root of 1864841 is about 1365.5918130979. The cubic root of 1864841 is about 123.0874958566.

The spelling of 1864841 in words is "one million, eight hundred sixty-four thousand, eight hundred forty-one".