4387072 has 18 divisors (see below), whose sum is σ = 8757518. Its totient is φ = 2193408.

The previous prime is 4387069. The next prime is 4387073. The reversal of 4387072 is 2707834.

It can be written as a sum of positive squares in only one way, i.e., 2359296 + 2027776 = 1536^2 + 1424^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4387073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8313 + ... + 8824.

Almost surely, 2^4387072 is an apocalyptic number.

It is an amenable number.

4387072 is a deficient number, since it is larger than the sum of its proper divisors (4370446).

4387072 is an equidigital number, since it uses as much as digits as its factorization.

4387072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17153 (or 17139 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 4387072 is about 2094.5338383516. The cubic root of 4387072 is about 163.7036090250.

The spelling of 4387072 in words is "four million, three hundred eighty-seven thousand, seventy-two".