47981222 has 4 divisors (see below), whose sum is σ = 71971836. Its totient is φ = 23990610.

The previous prime is 47981209. The next prime is 47981231. The reversal of 47981222 is 22218974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22218974 = 2 ⋅11109487.

It is a super-2 number, since 2×47981222² = 4604395329226568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11995304 + ... + 11995307.

It is an arithmetic number, because the mean of its divisors is an integer number (17992959).

Almost surely, 2^47981222 is an apocalyptic number.

47981222 is a deficient number, since it is larger than the sum of its proper divisors (23990614).

47981222 is a wasteful number, since it uses less digits than its factorization.

47981222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23990613.

The product of its digits is 16128, while the sum is 35.

The square root of 47981222 is about 6926.8479122903. The cubic root of 47981222 is about 363.3767208705.

The spelling of 47981222 in words is "forty-seven million, nine hundred eighty-one thousand, two hundred twenty-two".