9872623 has 2 divisors, whose sum is σ = 9872624. Its totient is φ = 9872622.

The previous prime is 9872587. The next prime is 9872641. The reversal of 9872623 is 3262789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9872623 - 2⁹ = 9872111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9872683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936311 + 4936312.

It is an arithmetic number, because the mean of its divisors is an integer number (4936312).

Almost surely, 2^9872623 is an apocalyptic number.

9872623 is a deficient number, since it is larger than the sum of its proper divisors (1).

9872623 is an equidigital number, since it uses as much as digits as its factorization.

9872623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 9872623 is about 3142.0730417990. The cubic root of 9872623 is about 214.5248059148.

The spelling of 9872623 in words is "nine million, eight hundred seventy-two thousand, six hundred twenty-three".