9621623 has 4 divisors (see below), whose sum is σ = 10496328. Its totient is φ = 8746920.

The previous prime is 9621617. The next prime is 9621641. The reversal of 9621623 is 3261269.

9621623 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 3261269 = 11 ⋅296479.

It is a cyclic number.

It is not a de Polignac number, because 9621623 - 2¹² = 9617527 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 (9621683) 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, 437336 + ... + 437357.

It is an arithmetic number, because the mean of its divisors is an integer number (2624082).

Almost surely, 2^9621623 is an apocalyptic number.

9621623 is a deficient number, since it is larger than the sum of its proper divisors (874705).

9621623 is a wasteful number, since it uses less digits than its factorization.

9621623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874704.

The product of its digits is 3888, while the sum is 29.

The square root of 9621623 is about 3101.8741109207. The cubic root of 9621623 is about 212.6911626980.

The spelling of 9621623 in words is "nine million, six hundred twenty-one thousand, six hundred twenty-three".