47997944 has 8 divisors (see below), whose sum is σ = 89996160. Its totient is φ = 23998968.

The previous prime is 47997923. The next prime is 47997947. The reversal of 47997944 is 44979974.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×47997944³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47997947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999864 + ... + 2999879.

It is an arithmetic number, because the mean of its divisors is an integer number (11249520).

Almost surely, 2^47997944 is an apocalyptic number.

It is an amenable number.

47997944 is a deficient number, since it is larger than the sum of its proper divisors (41998216).

47997944 is a wasteful number, since it uses less digits than its factorization.

47997944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999749 (or 5999745 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The square root of 47997944 is about 6928.0548496674. The cubic root of 47997944 is about 363.4189296035.

The spelling of 47997944 in words is "forty-seven million, nine hundred ninety-seven thousand, nine hundred forty-four".