9541649 has 4 divisors (see below), whose sum is σ = 10275636. Its totient is φ = 8807664.

The previous prime is 9541627. The next prime is 9541663. The reversal of 9541649 is 9461459.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3972049 + 5569600 = 1993^2 + 2360^2 .

It is a cyclic number.

It is not a de Polignac number, because 9541649 - 2⁸ = 9541393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9541669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366974 + ... + 366999.

It is an arithmetic number, because the mean of its divisors is an integer number (2568909).

Almost surely, 2^9541649 is an apocalyptic number.

It is an amenable number.

9541649 is a deficient number, since it is larger than the sum of its proper divisors (733987).

9541649 is a wasteful number, since it uses less digits than its factorization.

9541649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733986.

The product of its digits is 38880, while the sum is 38.

The square root of 9541649 is about 3088.9559724930. The cubic root of 9541649 is about 212.1002329516.

The spelling of 9541649 in words is "nine million, five hundred forty-one thousand, six hundred forty-nine".