9172946 has 8 divisors (see below), whose sum is σ = 13777020. Its totient is φ = 4580608.

The previous prime is 9172913. The next prime is 9172949. The reversal of 9172946 is 6492719.

It can be written as a sum of positive squares in 2 ways, for example, as 8059921 + 1113025 = 2839^2 + 1055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9172949) 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, 611 + ... + 4326.

Almost surely, 2^9172946 is an apocalyptic number.

9172946 is a deficient number, since it is larger than the sum of its proper divisors (4604074).

9172946 is a wasteful number, since it uses less digits than its factorization.

9172946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its digits is 27216, while the sum is 38.

The square root of 9172946 is about 3028.6871743381. The cubic root of 9172946 is about 209.3323162711.

It can be divided in two parts, 91 and 72946, that added together give a palindrome (73037).

The spelling of 9172946 in words is "nine million, one hundred seventy-two thousand, nine hundred forty-six".