8996021 has 4 divisors (see below), whose sum is σ = 9025632. Its totient is φ = 8966412.

The previous prime is 8996017. The next prime is 8996027. The reversal of 8996021 is 1206998.

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 8996021 - 2² = 8996017 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 (8996027) 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, 14345 + ... + 14958.

It is an arithmetic number, because the mean of its divisors is an integer number (2256408).

Almost surely, 2^8996021 is an apocalyptic number.

It is an amenable number.

8996021 is a deficient number, since it is larger than the sum of its proper divisors (29611).

8996021 is a wasteful number, since it uses less digits than its factorization.

8996021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29610.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 8996021 is about 2999.3367600188. The cubic root of 8996021 is about 207.9777235142.

The spelling of 8996021 in words is "eight million, nine hundred ninety-six thousand, twenty-one".