1874923849 has 4 divisors (see below), whose sum is σ = 1878219540. Its totient is φ = 1871628160.

The previous prime is 1874923837. The next prime is 1874923951. The reversal of 1874923849 is 9483294781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9483294781 = 8863 ⋅1069987.

It can be written as a sum of positive squares in 2 ways, for example, as 335146249 + 1539777600 = 18307^2 + 39240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874923849 - 2¹¹ = 1874921801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1874923849.

It is not an unprimeable number, because it can be changed into a prime (1874923049) 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, 1646992 + ... + 1648129.

It is an arithmetic number, because the mean of its divisors is an integer number (469554885).

Almost surely, 2^1874923849 is an apocalyptic number.

It is an amenable number.

1874923849 is a deficient number, since it is larger than the sum of its proper divisors (3295691).

1874923849 is an equidigital number, since it uses as much as digits as its factorization.

1874923849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295690.

The product of its digits is 3483648, while the sum is 55.

The square root of 1874923849 is about 43300.3908642867. The cubic root of 1874923849 is about 1233.0893432045.

The spelling of 1874923849 in words is "one billion, eight hundred seventy-four million, nine hundred twenty-three thousand, eight hundred forty-nine".