47131378 has 16 divisors (see below), whose sum is σ = 85549824. Its totient is φ = 19010880.

The previous prime is 47131367. The next prime is 47131387. The reversal of 47131378 is 87313174.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98778 + ... + 99253.

It is an arithmetic number, because the mean of its divisors is an integer number (5346864).

Almost surely, 2^47131378 is an apocalyptic number.

47131378 is a deficient number, since it is larger than the sum of its proper divisors (38418446).

47131378 is a wasteful number, since it uses less digits than its factorization.

47131378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198057.

The product of its digits is 14112, while the sum is 34.

The square root of 47131378 is about 6865.2296392765. The cubic root of 47131378 is about 361.2185507597.

The spelling of 47131378 in words is "forty-seven million, one hundred thirty-one thousand, three hundred seventy-eight".