4391672 has 16 divisors (see below), whose sum is σ = 8296560. Its totient is φ = 2179264.

The previous prime is 4391671. The next prime is 4391683. The reversal of 4391672 is 2761934.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (518535).

Almost surely, 2^4391672 is an apocalyptic number.

It is an amenable number.

4391672 is a deficient number, since it is larger than the sum of its proper divisors (3904888).

4391672 is a wasteful number, since it uses less digits than its factorization.

4391672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4146 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 4391672 is about 2095.6316470220. The cubic root of 4391672 is about 163.7608053783.

The spelling of 4391672 in words is "four million, three hundred ninety-one thousand, six hundred seventy-two".