47819378 has 4 divisors (see below), whose sum is σ = 71729070. Its totient is φ = 23909688.

The previous prime is 47819377. The next prime is 47819383. The reversal of 47819378 is 87391874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42680089 + 5139289 = 6533^2 + 2267^2 .

It is not an unprimeable number, because it can be changed into a prime (47819377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11954843 + ... + 11954846.

Almost surely, 2^47819378 is an apocalyptic number.

47819378 is a deficient number, since it is larger than the sum of its proper divisors (23909692).

47819378 is a wasteful number, since it uses less digits than its factorization.

47819378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23909691.

The product of its digits is 338688, while the sum is 47.

The square root of 47819378 is about 6915.1556743142. The cubic root of 47819378 is about 362.9676956482.

The spelling of 47819378 in words is "forty-seven million, eight hundred nineteen thousand, three hundred seventy-eight".