9477945 has 16 divisors (see below), whose sum is σ = 16849920. Its totient is φ = 5054832.

The previous prime is 9477917. The next prime is 9477947. The reversal of 9477945 is 5497749.

9477945 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9477945 - 2¹³ = 9469753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9477945.

It is not an unprimeable number, because it can be changed into a prime (9477947) 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, 34969 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (1053120).

Almost surely, 2^9477945 is an apocalyptic number.

It is an amenable number.

9477945 is a deficient number, since it is larger than the sum of its proper divisors (7371975).

9477945 is a wasteful number, since it uses less digits than its factorization.

9477945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70221 (or 70215 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 9477945 is about 3078.6271290950. The cubic root of 9477945 is about 211.6271555683.

The spelling of 9477945 in words is "nine million, four hundred seventy-seven thousand, nine hundred forty-five".