47747474 has 8 divisors (see below), whose sum is σ = 72359868. Its totient is φ = 23627520.

The previous prime is 47747443. The next prime is 47747489. The reversal of 47747474 is 47474774.

It can be written as a sum of positive squares in 2 ways, for example, as 41280625 + 6466849 = 6425^2 + 2543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 122867 + ... + 123254.

Almost surely, 2^47747474 is an apocalyptic number.

47747474 is a deficient number, since it is larger than the sum of its proper divisors (24612394).

47747474 is a wasteful number, since it uses less digits than its factorization.

47747474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246220.

The product of its digits is 614656, while the sum is 44.

The square root of 47747474 is about 6909.9547031800. The cubic root of 47747474 is about 362.7856779358.

The spelling of 47747474 in words is "forty-seven million, seven hundred forty-seven thousand, four hundred seventy-four".