9661455 has 24 divisors (see below), whose sum is σ = 17139408. Its totient is φ = 5031936.

The previous prime is 9661441. The next prime is 9661459. The reversal of 9661455 is 5541669.

9661455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9661455 - 2⁴ = 9661439 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (714142).

Almost surely, 2^9661455 is an apocalyptic number.

9661455 is a deficient number, since it is larger than the sum of its proper divisors (7477953).

9661455 is a wasteful number, since it uses less digits than its factorization.

9661455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047 (or 5044 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 9661455 is about 3108.2881140589. The cubic root of 9661455 is about 212.9842612189.

It can be divided in two parts, 96614 and 55, that added together give a palindrome (96669).

The spelling of 9661455 in words is "nine million, six hundred sixty-one thousand, four hundred fifty-five".