1204863 has 16 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 704480.

The previous prime is 1204859. The next prime is 1204871. The reversal of 1204863 is 3684021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1204863 - 2² = 1204859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^1204863 is an apocalyptic number.

1204863 is a deficient number, since it is larger than the sum of its proper divisors (609537).

1204863 is a wasteful number, since it uses less digits than its factorization.

1204863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1204863 is about 1097.6625164412. The cubic root of 1204863 is about 106.4092109067.

Adding to 1204863 its reverse (3684021), we get a palindrome (4888884).

The spelling of 1204863 in words is "one million, two hundred four thousand, eight hundred sixty-three".