1887479955 has 16 divisors (see below), whose sum is σ = 3355520160. Its totient is φ = 1006655904.

The previous prime is 1887479953. The next prime is 1887479959. The reversal of 1887479955 is 5599747881.

It is not a de Polignac number, because 1887479955 - 2¹ = 1887479953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1887479892 and 1887479901.

It is not an unprimeable number, because it can be changed into a prime (1887479953) 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 15 ways as a sum of consecutive naturals, for example, 6990532 + ... + 6990801.

It is an arithmetic number, because the mean of its divisors is an integer number (209720010).

Almost surely, 2^1887479955 is an apocalyptic number.

1887479955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1887479955 is a deficient number, since it is larger than the sum of its proper divisors (1468040205).

1887479955 is a wasteful number, since it uses less digits than its factorization.

1887479955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13981347 (or 13981341 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 63.

The square root of 1887479955 is about 43445.1372998176. The cubic root of 1887479955 is about 1235.8358310092.

The spelling of 1887479955 in words is "one billion, eight hundred eighty-seven million, four hundred seventy-nine thousand, nine hundred fifty-five".