47221277 has 16 divisors (see below), whose sum is σ = 51437568. Its totient is φ = 43219440.

The previous prime is 47221199. The next prime is 47221283. The reversal of 47221277 is 77212274.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 47221277 - 2¹⁰ = 47220253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47221477) 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, 73118 + ... + 73760.

It is an arithmetic number, because the mean of its divisors is an integer number (3214848).

Almost surely, 2^47221277 is an apocalyptic number.

It is an amenable number.

47221277 is a deficient number, since it is larger than the sum of its proper divisors (4216291).

47221277 is a wasteful number, since it uses less digits than its factorization.

47221277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its digits is 10976, while the sum is 32.

The square root of 47221277 is about 6871.7739339999. The cubic root of 47221277 is about 361.4480692046.

The spelling of 47221277 in words is "forty-seven million, two hundred twenty-one thousand, two hundred seventy-seven".