9640455 has 16 divisors (see below), whose sum is σ = 16827264. Its totient is φ = 4674080.

The previous prime is 9640447. The next prime is 9640457. The reversal of 9640455 is 5540469.

It is not a de Polignac number, because 9640455 - 2³ = 9640447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640457) 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, 29049 + ... + 29378.

It is an arithmetic number, because the mean of its divisors is an integer number (1051704).

Almost surely, 2^9640455 is an apocalyptic number.

9640455 is a deficient number, since it is larger than the sum of its proper divisors (7186809).

9640455 is a wasteful number, since it uses less digits than its factorization.

9640455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58446.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 9640455 is about 3104.9082112037. The cubic root of 9640455 is about 212.8298361010.

The spelling of 9640455 in words is "nine million, six hundred forty thousand, four hundred fifty-five".