9620621 has 4 divisors (see below), whose sum is σ = 9631392. Its totient is φ = 9609852.

The previous prime is 9620617. The next prime is 9620627. The reversal of 9620621 is 1260269.

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.

It is a cyclic number.

It is not a de Polignac number, because 9620621 - 2² = 9620617 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 (9620627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3911 + ... + 5876.

It is an arithmetic number, because the mean of its divisors is an integer number (2407848).

Almost surely, 2^9620621 is an apocalyptic number.

It is an amenable number.

9620621 is a deficient number, since it is larger than the sum of its proper divisors (10771).

9620621 is an equidigital number, since it uses as much as digits as its factorization.

9620621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9620621 is about 3101.7125914565. The cubic root of 9620621 is about 212.6837791916.

The spelling of 9620621 in words is "nine million, six hundred twenty thousand, six hundred twenty-one".