8623007021 has 4 divisors (see below), whose sum is σ = 8823542112. Its totient is φ = 8422471932.

The previous prime is 8623007017. The next prime is 8623007047. The reversal of 8623007021 is 1207003268.

It is a happy number.

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 8623007021 - 2² = 8623007017 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 (8623007051) 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, 100267481 + ... + 100267566.

It is an arithmetic number, because the mean of its divisors is an integer number (2205885528).

Almost surely, 2^8623007021 is an apocalyptic number.

It is an amenable number.

8623007021 is a deficient number, since it is larger than the sum of its proper divisors (200535091).

8623007021 is a wasteful number, since it uses less digits than its factorization.

8623007021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200535090.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 8623007021 is about 92860.1476468781. The cubic root of 8623007021 is about 2050.6249945234.

The spelling of 8623007021 in words is "eight billion, six hundred twenty-three million, seven thousand, twenty-one".