47371644 has 36 divisors (see below), whose sum is σ = 119954016. Its totient is φ = 15763008.

The previous prime is 47371633. The next prime is 47371661. The reversal of 47371644 is 44617374.

It is a happy number.

47371644 is a `hidden beast` number, since 4 + 7 + 3 + 7 + 1 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47371599 and 47371608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39112 + ... + 40304.

It is an arithmetic number, because the mean of its divisors is an integer number (3332056).

Almost surely, 2^47371644 is an apocalyptic number.

It is an amenable number.

47371644 is an abundant number, since it is smaller than the sum of its proper divisors (72582372).

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

47371644 is a wasteful number, since it uses less digits than its factorization.

47371644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306 (or 2301 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 47371644 is about 6882.7061538322. The cubic root of 47371644 is about 361.8313164627.

The spelling of 47371644 in words is "forty-seven million, three hundred seventy-one thousand, six hundred forty-four".