47886401 has 8 divisors (see below), whose sum is σ = 49982184. Its totient is φ = 45834880.

The previous prime is 47886389. The next prime is 47886409. The reversal of 47886401 is 10468874.

It is a Cunningham number, because it is equal to 6920²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 47886400 = 1^2 + 6920^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47886401 - 2¹⁸ = 47624257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47886409) 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 7 ways as a sum of consecutive naturals, for example, 8846 + ... + 13191.

It is an arithmetic number, because the mean of its divisors is an integer number (6247773).

Almost surely, 2^47886401 is an apocalyptic number.

47886401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

47886401 is a deficient number, since it is larger than the sum of its proper divisors (2095783).

47886401 is a wasteful number, since it uses less digits than its factorization.

47886401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 47886401 is about 6920.0000722543. Note that the first 4 decimals coincide. The cubic root of 47886401 is about 363.1371933718.

The spelling of 47886401 in words is "forty-seven million, eight hundred eighty-six thousand, four hundred one".