47791444 has 6 divisors (see below), whose sum is σ = 83635034. Its totient is φ = 23895720.

The previous prime is 47791427. The next prime is 47791453. The reversal of 47791444 is 44419774.

It can be written as a sum of positive squares in only one way, i.e., 35259844 + 12531600 = 5938^2 + 3540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47791397 and 47791406.

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, 5973927 + ... + 5973934.

Almost surely, 2^47791444 is an apocalyptic number.

It is an amenable number.

47791444 is a deficient number, since it is larger than the sum of its proper divisors (35843590).

47791444 is a wasteful number, since it uses less digits than its factorization.

47791444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11947865 (or 11947863 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 47791444 is about 6913.1356127303. The cubic root of 47791444 is about 362.8970052366.

The spelling of 47791444 in words is "forty-seven million, seven hundred ninety-one thousand, four hundred forty-four".