9621247 has 4 divisors (see below), whose sum is σ = 9627480. Its totient is φ = 9615016.

The previous prime is 9621233. The next prime is 9621251. The reversal of 9621247 is 7421269.

9621247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7421269 = 2659 ⋅2791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9621247 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9621257) 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, 1113 + ... + 4525.

It is an arithmetic number, because the mean of its divisors is an integer number (2406870).

Almost surely, 2^9621247 is an apocalyptic number.

9621247 is a deficient number, since it is larger than the sum of its proper divisors (6233).

9621247 is a wasteful number, since it uses less digits than its factorization.

9621247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232.

The product of its digits is 6048, while the sum is 31.

The square root of 9621247 is about 3101.8135018083. The cubic root of 9621247 is about 212.6883921010.

It can be divided in two parts, 962 and 1247, that added together give a square (2209 = 47²).

The spelling of 9621247 in words is "nine million, six hundred twenty-one thousand, two hundred forty-seven".