9613649 has 4 divisors (see below), whose sum is σ = 9655860. Its totient is φ = 9571440.

The previous prime is 9613633. The next prime is 9613663. The reversal of 9613649 is 9463169.

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 4231249 + 5382400 = 2057^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 9613649 - 2⁴ = 9613633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9613349) 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, 20762 + ... + 21219.

It is an arithmetic number, because the mean of its divisors is an integer number (2413965).

Almost surely, 2^9613649 is an apocalyptic number.

It is an amenable number.

9613649 is a deficient number, since it is larger than the sum of its proper divisors (42211).

9613649 is a wasteful number, since it uses less digits than its factorization.

9613649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42210.

The product of its digits is 34992, while the sum is 38.

The square root of 9613649 is about 3100.5884925285. The cubic root of 9613649 is about 212.6323899361.

The spelling of 9613649 in words is "nine million, six hundred thirteen thousand, six hundred forty-nine".