980661 has 8 divisors (see below), whose sum is σ = 1426464. Its totient is φ = 594320.

The previous prime is 980641. The next prime is 980677. The reversal of 980661 is 166089.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 980661 - 2⁹ = 980149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14826 + ... + 14891.

It is an arithmetic number, because the mean of its divisors is an integer number (178308).

2⁹⁸⁰⁶⁶¹ is an apocalyptic number.

It is an amenable number.

980661 is a deficient number, since it is larger than the sum of its proper divisors (445803).

980661 is a wasteful number, since it uses less digits than its factorization.

980661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29731.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 980661 is about 990.2832928006. The cubic root of 980661 is about 99.3511659150.

The spelling of 980661 in words is "nine hundred eighty thousand, six hundred sixty-one".