47221377 has 8 divisors (see below), whose sum is σ = 71956416. Its totient is φ = 26983632.

The previous prime is 47221333. The next prime is 47221397. The reversal of 47221377 is 77312274.

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

It is not a de Polignac number, because 47221377 - 2¹⁰ = 47220353 is a prime.

It is a super-2 number, since 2×47221377² = 4459716891552258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47221397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1124298 + ... + 1124339.

It is an arithmetic number, because the mean of its divisors is an integer number (8994552).

Almost surely, 2^47221377 is an apocalyptic number.

It is an amenable number.

47221377 is a deficient number, since it is larger than the sum of its proper divisors (24735039).

47221377 is a wasteful number, since it uses less digits than its factorization.

47221377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248647.

The product of its digits is 16464, while the sum is 33.

The square root of 47221377 is about 6871.7812101376. The cubic root of 47221377 is about 361.4483243494.

The spelling of 47221377 in words is "forty-seven million, two hundred twenty-one thousand, three hundred seventy-seven".