9489945 has 16 divisors (see below), whose sum is σ = 15595200. Its totient is φ = 4924224.

The previous prime is 9489943. The next prime is 9489967. The reversal of 9489945 is 5499849.

It is not a de Polignac number, because 9489945 - 2¹ = 9489943 is a prime.

It is a super-2 number, since 2×9489945² = 180118112206050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9489894 and 9489903.

It is not an unprimeable number, because it can be changed into a prime (9489943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7995 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (974700).

Almost surely, 2^9489945 is an apocalyptic number.

It is an amenable number.

9489945 is a deficient number, since it is larger than the sum of its proper divisors (6105255).

9489945 is a wasteful number, since it uses less digits than its factorization.

9489945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17144.

The product of its digits is 466560, while the sum is 48.

The square root of 9489945 is about 3080.5754332592. The cubic root of 9489945 is about 211.7164314207.

The spelling of 9489945 in words is "nine million, four hundred eighty-nine thousand, nine hundred forty-five".