47478274 has 4 divisors (see below), whose sum is σ = 71217414. Its totient is φ = 23739136.

The previous prime is 47478269. The next prime is 47478281. The reversal of 47478274 is 47287474.

It is a happy number.

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., 36542025 + 10936249 = 6045^2 + 3307^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47478274.

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, 11869567 + ... + 11869570.

Almost surely, 2^47478274 is an apocalyptic number.

47478274 is a deficient number, since it is larger than the sum of its proper divisors (23739140).

47478274 is a wasteful number, since it uses less digits than its factorization.

47478274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23739139.

The product of its digits is 351232, while the sum is 43.

The square root of 47478274 is about 6890.4480260720. The cubic root of 47478274 is about 362.1025980264.

The spelling of 47478274 in words is "forty-seven million, four hundred seventy-eight thousand, two hundred seventy-four".