9642945 has 16 divisors (see below), whose sum is σ = 16615872. Its totient is φ = 4747200.

The previous prime is 9642931. The next prime is 9642949. The reversal of 9642945 is 5492469.

It is not a de Polignac number, because 9642945 - 2⁴ = 9642929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (9642949) 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, 24531 + ... + 24920.

It is an arithmetic number, because the mean of its divisors is an integer number (1038492).

Almost surely, 2^9642945 is an apocalyptic number.

It is an amenable number.

9642945 is a deficient number, since it is larger than the sum of its proper divisors (6972927).

9642945 is a wasteful number, since it uses less digits than its factorization.

9642945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49472.

The product of its digits is 77760, while the sum is 39.

The square root of 9642945 is about 3105.3091633523. The cubic root of 9642945 is about 212.8481582194.

The spelling of 9642945 in words is "nine million, six hundred forty-two thousand, nine hundred forty-five".