8980661 has 4 divisors (see below), whose sum is σ = 9015072. Its totient is φ = 8946252.

The previous prime is 8980637. The next prime is 8980663. The reversal of 8980661 is 1660898.

8980661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 1660898 = 2 ⋅830449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8980661 is a prime.

It is an Ulam number.

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 (8980663) 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, 16811 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (2253768).

Almost surely, 2^8980661 is an apocalyptic number.

It is an amenable number.

8980661 is a deficient number, since it is larger than the sum of its proper divisors (34411).

8980661 is a wasteful number, since it uses less digits than its factorization.

8980661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8980661 is about 2996.7751000033. The cubic root of 8980661 is about 207.8592875338.

The spelling of 8980661 in words is "eight million, nine hundred eighty thousand, six hundred sixty-one".