1872479 has 4 divisors (see below), whose sum is σ = 2139984. Its totient is φ = 1604976.

The previous prime is 1872473. The next prime is 1872491. The reversal of 1872479 is 9742781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9742781 = 1087 ⋅8963.

It is a cyclic number.

It is not a de Polignac number, because 1872479 - 2⁴ = 1872463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872473) 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, 133742 + ... + 133755.

It is an arithmetic number, because the mean of its divisors is an integer number (534996).

2^1872479 is an apocalyptic number.

1872479 is a deficient number, since it is larger than the sum of its proper divisors (267505).

1872479 is an equidigital number, since it uses as much as digits as its factorization.

1872479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267504.

The product of its digits is 28224, while the sum is 38.

The square root of 1872479 is about 1368.3855450859. The cubic root of 1872479 is about 123.2553138571.

The spelling of 1872479 in words is "one million, eight hundred seventy-two thousand, four hundred seventy-nine".