9628409 has 8 divisors (see below), whose sum is σ = 11651328. Its totient is φ = 7767360.

The previous prime is 9628403. The next prime is 9628433. The reversal of 9628409 is 9048269.

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 9628409 - 2⁴ = 9628393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9628403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40337 + ... + 40574.

It is an arithmetic number, because the mean of its divisors is an integer number (1456416).

Almost surely, 2^9628409 is an apocalyptic number.

It is an amenable number.

9628409 is a deficient number, since it is larger than the sum of its proper divisors (2022919).

9628409 is a wasteful number, since it uses less digits than its factorization.

9628409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80935.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 9628409 is about 3102.9677729554. The cubic root of 9628409 is about 212.7411536764.

The spelling of 9628409 in words is "nine million, six hundred twenty-eight thousand, four hundred nine".