47873911 has 4 divisors (see below), whose sum is σ = 48529792. Its totient is φ = 47218032.

The previous prime is 47873909. The next prime is 47873923. The reversal of 47873911 is 11937874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47873911 - 2¹ = 47873909 is a prime.

It is a super-2 number, since 2×47873911² = 4583822708871842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47873941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327831 + ... + 327976.

It is an arithmetic number, because the mean of its divisors is an integer number (12132448).

Almost surely, 2^47873911 is an apocalyptic number.

47873911 is a deficient number, since it is larger than the sum of its proper divisors (655881).

47873911 is an equidigital number, since it uses as much as digits as its factorization.

47873911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655880.

The product of its digits is 42336, while the sum is 40.

The square root of 47873911 is about 6919.0975567627. The cubic root of 47873911 is about 363.1056187992.

It can be divided in two parts, 47873 and 911, that added together give a palindrome (48784).

The spelling of 47873911 in words is "forty-seven million, eight hundred seventy-three thousand, nine hundred eleven".