9628491 has 8 divisors (see below), whose sum is σ = 12856320. Its totient is φ = 6409832.

The previous prime is 9628469. The next prime is 9628519. The reversal of 9628491 is 1948269.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9628491 - 2¹⁰ = 9627467 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9623491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^9628491 is an apocalyptic number.

9628491 is a deficient number, since it is larger than the sum of its proper divisors (3227829).

9628491 is a wasteful number, since it uses less digits than its factorization.

9628491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its digits is 31104, while the sum is 39.

The square root of 9628491 is about 3102.9809860842. The cubic root of 9628491 is about 212.7417576088.

It can be divided in two parts, 962 and 8491, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 9628491 in words is "nine million, six hundred twenty-eight thousand, four hundred ninety-one".