47427428 has 6 divisors (see below), whose sum is σ = 82998006. Its totient is φ = 23713712.

The previous prime is 47427407. The next prime is 47427437. The reversal of 47427428 is 82472474.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 5721664 = 6458^2 + 2392^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47427391 and 47427400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5928425 + ... + 5928432.

It is an arithmetic number, because the mean of its divisors is an integer number (13833001).

Almost surely, 2^47427428 is an apocalyptic number.

It is an amenable number.

47427428 is a deficient number, since it is larger than the sum of its proper divisors (35570578).

47427428 is a wasteful number, since it uses less digits than its factorization.

47427428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856861 (or 11856859 counting only the distinct ones).

The product of its digits is 100352, while the sum is 38.

The square root of 47427428 is about 6886.7574372850. The cubic root of 47427428 is about 361.9732894428.

The spelling of 47427428 in words is "forty-seven million, four hundred twenty-seven thousand, four hundred twenty-eight".