1872073 has 4 divisors (see below), whose sum is σ = 2139520. Its totient is φ = 1604628.

The previous prime is 1872049. The next prime is 1872097. The reversal of 1872073 is 3702781.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (1872049) and next prime (1872097).

It is a cyclic number.

It is not a de Polignac number, because 1872073 - 2⁹ = 1871561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1872043) 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, 133713 + ... + 133726.

It is an arithmetic number, because the mean of its divisors is an integer number (534880).

2^1872073 is an apocalyptic number.

It is an amenable number.

1872073 is a deficient number, since it is larger than the sum of its proper divisors (267447).

1872073 is an equidigital number, since it uses as much as digits as its factorization.

1872073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267446.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1872073 is about 1368.2371870403. The cubic root of 1872073 is about 123.2464049410.

The spelling of 1872073 in words is "one million, eight hundred seventy-two thousand, seventy-three".