47421770 has 16 divisors (see below), whose sum is σ = 93119328. Its totient is φ = 17244240.

The previous prime is 47421769. The next prime is 47421779. The reversal of 47421770 is 7712474.

47421770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47421779) 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 7 ways as a sum of consecutive naturals, for example, 215444 + ... + 215663.

It is an arithmetic number, because the mean of its divisors is an integer number (5819958).

Almost surely, 2^47421770 is an apocalyptic number.

47421770 is a deficient number, since it is larger than the sum of its proper divisors (45697558).

47421770 is a wasteful number, since it uses less digits than its factorization.

47421770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431125.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 47421770 is about 6886.3466366427. The cubic root of 47421770 is about 361.9588946336.

The spelling of 47421770 in words is "forty-seven million, four hundred twenty-one thousand, seven hundred seventy".