47449587 has 18 divisors (see below), whose sum is σ = 65522244. Its totient is φ = 30543360.

The previous prime is 47449579. The next prime is 47449603. The reversal of 47449587 is 78594474.

47449587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47449587 - 2³ = 47449579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47449537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 489123 + ... + 489219.

Almost surely, 2^47449587 is an apocalyptic number.

47449587 is a deficient number, since it is larger than the sum of its proper divisors (18072657).

47449587 is an frugal number, since it uses more digits than its factorization.

47449587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 141 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 47449587 is about 6888.3660617014. The cubic root of 47449587 is about 362.0296542764.

Multiplying 47449587 by its sum of digits (48), we get a square (2277580176 = 47724²).

The spelling of 47449587 in words is "forty-seven million, four hundred forty-nine thousand, five hundred eighty-seven".