9072387 has 6 divisors (see below), whose sum is σ = 13104572. Its totient is φ = 6048252.

The previous prime is 9072383. The next prime is 9072421. The reversal of 9072387 is 7832709.

It is not a de Polignac number, because 9072387 - 2² = 9072383 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9072383) 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 5 ways as a sum of consecutive naturals, for example, 504013 + ... + 504030.

Almost surely, 2^9072387 is an apocalyptic number.

9072387 is a deficient number, since it is larger than the sum of its proper divisors (4032185).

9072387 is a wasteful number, since it uses less digits than its factorization.

9072387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008049 (or 1008046 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 9072387 is about 3012.0403383753. The cubic root of 9072387 is about 208.5645643087.

The spelling of 9072387 in words is "nine million, seventy-two thousand, three hundred eighty-seven".