8980621 has 4 divisors (see below), whose sum is σ = 9671452. Its totient is φ = 8289792.

The previous prime is 8980591. The next prime is 8980627. The reversal of 8980621 is 1260898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6056521 + 2924100 = 2461^2 + 1710^2 .

It is a cyclic number.

It is not a de Polignac number, because 8980621 - 2⁵ = 8980589 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 (8980627) 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, 345396 + ... + 345421.

It is an arithmetic number, because the mean of its divisors is an integer number (2417863).

Almost surely, 2^8980621 is an apocalyptic number.

It is an amenable number.

8980621 is a deficient number, since it is larger than the sum of its proper divisors (690831).

8980621 is a wasteful number, since it uses less digits than its factorization.

8980621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690830.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 8980621 is about 2996.7684261551. The cubic root of 8980621 is about 207.8589789305.

The spelling of 8980621 in words is "eight million, nine hundred eighty thousand, six hundred twenty-one".