4747428 has 36 divisors (see below), whose sum is σ = 13715520. Its totient is φ = 1356336.

The previous prime is 4747427. The next prime is 4747441. The reversal of 4747428 is 8247474.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4747392 and 4747401.

It is not an unprimeable number, because it can be changed into a prime (4747427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9168 + ... + 9671.

Almost surely, 2^4747428 is an apocalyptic number.

It is an amenable number.

4747428 is an abundant number, since it is smaller than the sum of its proper divisors (8968092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4747428 is a wasteful number, since it uses less digits than its factorization.

4747428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18856 (or 18851 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 4747428 is about 2178.8593346061. The cubic root of 4747428 is about 168.0684245086.

The spelling of 4747428 in words is "four million, seven hundred forty-seven thousand, four hundred twenty-eight".