1861233 has 8 divisors (see below), whose sum is σ = 2707296. Its totient is φ = 1128000.

The previous prime is 1861219. The next prime is 1861253. The reversal of 1861233 is 3321681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1861233 - 2⁸ = 1860977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1861253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28168 + ... + 28233.

It is an arithmetic number, because the mean of its divisors is an integer number (338412).

2^1861233 is an apocalyptic number.

It is an amenable number.

1861233 is a deficient number, since it is larger than the sum of its proper divisors (846063).

1861233 is a wasteful number, since it uses less digits than its factorization.

1861233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56415.

The product of its digits is 864, while the sum is 24.

The square root of 1861233 is about 1364.2701345408. The cubic root of 1861233 is about 123.0080634545.

The spelling of 1861233 in words is "one million, eight hundred sixty-one thousand, two hundred thirty-three".