9661449 has 32 divisors (see below), whose sum is σ = 15611904. Its totient is φ = 5195520.

The previous prime is 9661441. The next prime is 9661459. The reversal of 9661449 is 9441669.

It is not a de Polignac number, because 9661449 - 2³ = 9661441 is a prime.

9661449 is a modest number, since divided by 1449 gives 966 as remainder.

It is not an unprimeable number, because it can be changed into a prime (9661441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39969 + ... + 40209.

It is an arithmetic number, because the mean of its divisors is an integer number (487872).

Almost surely, 2^9661449 is an apocalyptic number.

It is an amenable number.

9661449 is a deficient number, since it is larger than the sum of its proper divisors (5950455).

9661449 is a wasteful number, since it uses less digits than its factorization.

9661449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its digits is 46656, while the sum is 39.

The square root of 9661449 is about 3108.2871488973. The cubic root of 9661449 is about 212.9842171294.

It can be divided in two parts, 966 and 1449, that added together give a triangular number (2415 = T₆₉).

The spelling of 9661449 in words is "nine million, six hundred sixty-one thousand, four hundred forty-nine".