4637428 has 12 divisors (see below), whose sum is σ = 8313732. Its totient is φ = 2262080.

The previous prime is 4637417. The next prime is 4637429. The reversal of 4637428 is 8247364.

It can be written as a sum of positive squares in 2 ways, for example, as 842724 + 3794704 = 918^2 + 1948^2 .

It is a d-powerful number, because it can be written as 4⁹ + 6⁴ + 3¹¹ + 7⁴ + 4¹¹ + 2⁷ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 4637393 and 4637402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4637429) by changing a digit.

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, 13975 + ... + 14302.

It is an arithmetic number, because the mean of its divisors is an integer number (692811).

Almost surely, 2^4637428 is an apocalyptic number.

It is an amenable number.

4637428 is a deficient number, since it is larger than the sum of its proper divisors (3676304).

4637428 is a wasteful number, since it uses less digits than its factorization.

4637428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322 (or 28320 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 4637428 is about 2153.4688295863. The cubic root of 4637428 is about 166.7601946164.

The spelling of 4637428 in words is "four million, six hundred thirty-seven thousand, four hundred twenty-eight".