47781674 has 4 divisors (see below), whose sum is σ = 71672514. Its totient is φ = 23890836.

The previous prime is 47781623. The next prime is 47781677. The reversal of 47781674 is 47618774.

It is a happy number.

47781674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 42055225 + 5726449 = 6485^2 + 2393^2 .

It is not an unprimeable number, because it can be changed into a prime (47781677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11945417 + ... + 11945420.

Almost surely, 2^47781674 is an apocalyptic number.

47781674 is a deficient number, since it is larger than the sum of its proper divisors (23890840).

47781674 is a wasteful number, since it uses less digits than its factorization.

47781674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890839.

The product of its digits is 263424, while the sum is 44.

The square root of 47781674 is about 6912.4289508103. The cubic root of 47781674 is about 362.8722745521.

The spelling of 47781674 in words is "forty-seven million, seven hundred eighty-one thousand, six hundred seventy-four".