986078881 has 8 divisors (see below), whose sum is σ = 1014247520. Its totient is φ = 958148352.

The previous prime is 986078879. The next prime is 986078893. The reversal of 986078881 is 188870689.

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 986078881 - 2¹ = 986078879 is a prime.

It is a super-2 number, since 2×986078881² = 1944703119108424322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986078801) 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, 51111 + ... + 67708.

It is an arithmetic number, because the mean of its divisors is an integer number (126780940).

Almost surely, 2^986078881 is an apocalyptic number.

It is an amenable number.

986078881 is a deficient number, since it is larger than the sum of its proper divisors (28168639).

986078881 is a wasteful number, since it uses less digits than its factorization.

986078881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119055.

The product of its (nonzero) digits is 1548288, while the sum is 55.

The square root of 986078881 is about 31401.8929524957. The cubic root of 986078881 is about 995.3379258412.

The spelling of 986078881 in words is "nine hundred eighty-six million, seventy-eight thousand, eight hundred eighty-one".