47477378 has 16 divisors (see below), whose sum is σ = 76816320. Its totient is φ = 21877776.

The previous prime is 47477377. The next prime is 47477383. The reversal of 47477378 is 87377474.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47477377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22901 + ... + 24887.

It is an arithmetic number, because the mean of its divisors is an integer number (4801020).

Almost surely, 2^47477378 is an apocalyptic number.

47477378 is a deficient number, since it is larger than the sum of its proper divisors (29338942).

47477378 is a wasteful number, since it uses less digits than its factorization.

47477378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921.

The product of its digits is 921984, while the sum is 47.

The square root of 47477378 is about 6890.3830082224. The cubic root of 47477378 is about 362.1003201707.

The spelling of 47477378 in words is "forty-seven million, four hundred seventy-seven thousand, three hundred seventy-eight".