8900621 has 4 divisors (see below), whose sum is σ = 8906592. Its totient is φ = 8894652.

The previous prime is 8900603. The next prime is 8900641. The reversal of 8900621 is 1260098.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8900621 - 2¹⁸ = 8638477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8900641) 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, 1346 + ... + 4428.

It is an arithmetic number, because the mean of its divisors is an integer number (2226648).

Almost surely, 2^8900621 is an apocalyptic number.

It is an amenable number.

8900621 is a deficient number, since it is larger than the sum of its proper divisors (5971).

8900621 is a wasteful number, since it uses less digits than its factorization.

8900621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 8900621 is about 2983.3908560562. The cubic root of 8900621 is about 207.2399296565.

The spelling of 8900621 in words is "eight million, nine hundred thousand, six hundred twenty-one".