47712146 has 4 divisors (see below), whose sum is σ = 71568222. Its totient is φ = 23856072.

The previous prime is 47712113. The next prime is 47712157. The reversal of 47712146 is 64121774.

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., 45495025 + 2217121 = 6745^2 + 1489^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11928035 + ... + 11928038.

Almost surely, 2^47712146 is an apocalyptic number.

47712146 is a deficient number, since it is larger than the sum of its proper divisors (23856076).

47712146 is a wasteful number, since it uses less digits than its factorization.

47712146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23856075.

The product of its digits is 9408, while the sum is 32.

The square root of 47712146 is about 6907.3979181744. The cubic root of 47712146 is about 362.6961817203.

The spelling of 47712146 in words is "forty-seven million, seven hundred twelve thousand, one hundred forty-six".