980016861 has 8 divisors (see below), whose sum is σ = 1306988704. Its totient is φ = 653194800.

The previous prime is 980016847. The next prime is 980016889. The reversal of 980016861 is 168610089.

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

It is not a de Polignac number, because 980016861 - 2⁶ = 980016797 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 (980016161) 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, 21166 + ... + 49071.

It is an arithmetic number, because the mean of its divisors is an integer number (163373588).

Almost surely, 2^980016861 is an apocalyptic number.

It is an amenable number.

980016861 is a deficient number, since it is larger than the sum of its proper divisors (326971843).

980016861 is a wasteful number, since it uses less digits than its factorization.

980016861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74891.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 980016861 is about 31305.2209862828. The cubic root of 980016861 is about 993.2940848893.

The spelling of 980016861 in words is "nine hundred eighty million, sixteen thousand, eight hundred sixty-one".