5447428 has 18 divisors (see below), whose sum is σ = 11089806. Its totient is φ = 2334528.

The previous prime is 5447417. The next prime is 5447443. The reversal of 5447428 is 8247445.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3161284 + 2286144 = 1778^2 + 1512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5447393 and 5447402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13701 + ... + 14092.

Almost surely, 2^5447428 is an apocalyptic number.

It is an amenable number.

5447428 is an abundant number, since it is smaller than the sum of its proper divisors (5642378).

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

5447428 is a wasteful number, since it uses less digits than its factorization.

5447428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27811 (or 27802 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 5447428 is about 2333.9725791020. The cubic root of 5447428 is about 175.9531986440.

The spelling of 5447428 in words is "five million, four hundred forty-seven thousand, four hundred twenty-eight".