47996378 has 4 divisors (see below), whose sum is σ = 71994570. Its totient is φ = 23998188.

The previous prime is 47996357. The next prime is 47996387. The reversal of 47996378 is 87369974.

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., 45873529 + 2122849 = 6773^2 + 1457^2 .

It is a super-2 number, since 2×47996378² = 4607304602237768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11999093 + ... + 11999096.

Almost surely, 2^47996378 is an apocalyptic number.

47996378 is a deficient number, since it is larger than the sum of its proper divisors (23998192).

47996378 is a wasteful number, since it uses less digits than its factorization.

47996378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23998191.

The product of its digits is 2286144, while the sum is 53.

The square root of 47996378 is about 6927.9418300098. The cubic root of 47996378 is about 363.4149772104.

The spelling of 47996378 in words is "forty-seven million, nine hundred ninety-six thousand, three hundred seventy-eight".