47871222 has 64 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 12852000.

The previous prime is 47871217. The next prime is 47871227. The reversal of 47871222 is 22217874.

It is an interprime number because it is at equal distance from previous prime (47871217) and next prime (47871227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47871227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190597 + ... + 190847.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^47871222 is an apocalyptic number.

47871222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 47871222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

47871222 is an abundant number, since it is smaller than the sum of its proper divisors (68250378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47871222 is a wasteful number, since it uses less digits than its factorization.

47871222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521.

The product of its digits is 12544, while the sum is 33.

The square root of 47871222 is about 6918.9032367854. The cubic root of 47871222 is about 363.0988203205.

The spelling of 47871222 in words is "forty-seven million, eight hundred seventy-one thousand, two hundred twenty-two".