4387972 has 24 divisors (see below), whose sum is σ = 8199576. Its totient is φ = 2047488.

The previous prime is 4387969. The next prime is 4387979. The reversal of 4387972 is 2797834.

4387972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2268036 + 2119936 = 1506^2 + 1456^2 .

It is a d-powerful number, because it can be written as 4⁷ + 3¹¹ + 8⁷ + 7 + 9² + 7² + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (4387979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11578 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (341649).

Almost surely, 2^4387972 is an apocalyptic number.

It is an amenable number.

4387972 is a deficient number, since it is larger than the sum of its proper divisors (3811604).

4387972 is a wasteful number, since it uses less digits than its factorization.

4387972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 565 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 4387972 is about 2094.7486722755. The cubic root of 4387972 is about 163.7148027608.

The spelling of 4387972 in words is "four million, three hundred eighty-seven thousand, nine hundred seventy-two".