47539378 has 8 divisors (see below), whose sum is σ = 75503772. Its totient is φ = 22371456.

The previous prime is 47539333. The next prime is 47539397. The reversal of 47539378 is 87393574.

It is a happy number.

47539378 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 2 ways, for example, as 46553329 + 986049 = 6823^2 + 993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 699075 + ... + 699142.

Almost surely, 2^47539378 is an apocalyptic number.

47539378 is a deficient number, since it is larger than the sum of its proper divisors (27964394).

47539378 is a wasteful number, since it uses less digits than its factorization.

47539378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398236.

The product of its digits is 635040, while the sum is 46.

The square root of 47539378 is about 6894.8805645928. The cubic root of 47539378 is about 362.2578720786.

The spelling of 47539378 in words is "forty-seven million, five hundred thirty-nine thousand, three hundred seventy-eight".