47686444 has 24 divisors (see below), whose sum is σ = 92066688. Its totient is φ = 21471360.

The previous prime is 47686433. The next prime is 47686477. The reversal of 47686444 is 44468674.

It is a self number, because there is not a number n which added to its sum of digits gives 47686444.

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, 9052 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (3836112).

Almost surely, 2^47686444 is an apocalyptic number.

It is an amenable number.

47686444 is a deficient number, since it is larger than the sum of its proper divisors (44380244).

47686444 is a wasteful number, since it uses less digits than its factorization.

47686444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22425 (or 22423 counting only the distinct ones).

The product of its digits is 516096, while the sum is 43.

The square root of 47686444 is about 6905.5371985096. The cubic root of 47686444 is about 362.6310432288.

It can be divided in two parts, 4768644 and 4, that multiplied together give a triangular number (19074576 = T₆₁₇₆).

The spelling of 47686444 in words is "forty-seven million, six hundred eighty-six thousand, four hundred forty-four".