47376881 has 4 divisors (see below), whose sum is σ = 47545764. Its totient is φ = 47208000.

The previous prime is 47376877. The next prime is 47376887. The reversal of 47376881 is 18867374.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26946481 + 20430400 = 5191^2 + 4520^2 .

It is not a de Polignac number, because 47376881 - 2² = 47376877 is a prime.

It is a super-2 number, since 2×47376881² = 4489137706576322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47376887) 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, 84020 + ... + 84581.

It is an arithmetic number, because the mean of its divisors is an integer number (11886441).

Almost surely, 2^47376881 is an apocalyptic number.

It is an amenable number.

47376881 is a deficient number, since it is larger than the sum of its proper divisors (168883).

47376881 is a wasteful number, since it uses less digits than its factorization.

47376881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168882.

The product of its digits is 225792, while the sum is 44.

The square root of 47376881 is about 6883.0865896050. The cubic root of 47376881 is about 361.8446496202.

The spelling of 47376881 in words is "forty-seven million, three hundred seventy-six thousand, eight hundred eighty-one".