9261649 has 4 divisors (see below), whose sum is σ = 9298800. Its totient is φ = 9224500.

The previous prime is 9261647. The next prime is 9261671. The reversal of 9261649 is 9461629.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9461629 = 887 ⋅10667.

It is a cyclic number.

It is not a de Polignac number, because 9261649 - 2¹ = 9261647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9261647) 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, 18199 + ... + 18700.

It is an arithmetic number, because the mean of its divisors is an integer number (2324700).

Almost surely, 2^9261649 is an apocalyptic number.

It is an amenable number.

9261649 is a deficient number, since it is larger than the sum of its proper divisors (37151).

9261649 is a wasteful number, since it uses less digits than its factorization.

9261649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37150.

The product of its digits is 23328, while the sum is 37.

The square root of 9261649 is about 3043.2957463907. The cubic root of 9261649 is about 210.0049054032.

It can be divided in two parts, 92616 and 49, that added together give a triangular number (92665 = T₄₃₀).

The spelling of 9261649 in words is "nine million, two hundred sixty-one thousand, six hundred forty-nine".