47268729 has 6 divisors (see below), whose sum is σ = 68277066. Its totient is φ = 31512480.

The previous prime is 47268719. The next prime is 47268737. The reversal of 47268729 is 92786274.

47268729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 23765625 + 23503104 = 4875^2 + 4848^2 .

It is not a de Polignac number, because 47268729 - 2¹³ = 47260537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47268719) 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 5 ways as a sum of consecutive naturals, for example, 2626032 + ... + 2626049.

It is an arithmetic number, because the mean of its divisors is an integer number (11379511).

Almost surely, 2^47268729 is an apocalyptic number.

It is an amenable number.

47268729 is a deficient number, since it is larger than the sum of its proper divisors (21008337).

47268729 is a wasteful number, since it uses less digits than its factorization.

47268729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252087 (or 5252084 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 47268729 is about 6875.2257417484. The cubic root of 47268729 is about 361.5691000407.

The spelling of 47268729 in words is "forty-seven million, two hundred sixty-eight thousand, seven hundred twenty-nine".