47217444 has 24 divisors (see below), whose sum is σ = 110285280. Its totient is φ = 15723264.

The previous prime is 47217427. The next prime is 47217491. The reversal of 47217444 is 44471274.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21627 + ... + 23709.

It is an arithmetic number, because the mean of its divisors is an integer number (4595220).

Almost surely, 2^47217444 is an apocalyptic number.

It is an amenable number.

47217444 is an abundant number, since it is smaller than the sum of its proper divisors (63067836).

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

47217444 is a wasteful number, since it uses less digits than its factorization.

47217444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3977 counting only the distinct ones).

The product of its digits is 25088, while the sum is 33.

The square root of 47217444 is about 6871.4950338336. The cubic root of 47217444 is about 361.4382892352.

The spelling of 47217444 in words is "forty-seven million, two hundred seventeen thousand, four hundred forty-four".