1872004 has 6 divisors (see below), whose sum is σ = 3276014. Its totient is φ = 936000.

The previous prime is 1872001. The next prime is 1872007. The reversal of 1872004 is 4002781.

It is an interprime number because it is at equal distance from previous prime (1872001) and next prime (1872007).

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 44100 = 1352^2 + 210^2 .

It is not an unprimeable number, because it can be changed into a prime (1872001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233997 + ... + 234004.

2^1872004 is an apocalyptic number.

It is an amenable number.

1872004 is a deficient number, since it is larger than the sum of its proper divisors (1404010).

1872004 is a wasteful number, since it uses less digits than its factorization.

1872004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468005 (or 468003 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1872004 is about 1368.2119718816. The cubic root of 1872004 is about 123.2448907361.

Adding to 1872004 its reverse (4002781), we get a palindrome (5874785).

The spelling of 1872004 in words is "one million, eight hundred seventy-two thousand, four".