9158972 has 6 divisors (see below), whose sum is σ = 16028208. Its totient is φ = 4579484.

The previous prime is 9158953. The next prime is 9158977. The reversal of 9158972 is 2798519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9158977) 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 as a sum of consecutive naturals, namely, 1144868 + ... + 1144875.

It is an arithmetic number, because the mean of its divisors is an integer number (2671368).

Almost surely, 2^9158972 is an apocalyptic number.

It is an amenable number.

9158972 is a deficient number, since it is larger than the sum of its proper divisors (6869236).

9158972 is a wasteful number, since it uses less digits than its factorization.

9158972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289747 (or 2289745 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 9158972 is about 3026.3793549388. The cubic root of 9158972 is about 209.2259637987.

The spelling of 9158972 in words is "nine million, one hundred fifty-eight thousand, nine hundred seventy-two".