981878763 has 8 divisors (see below), whose sum is σ = 1366092288. Its totient is φ = 626125544.

The previous prime is 981878749. The next prime is 981878797. The reversal of 981878763 is 367878189.

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 981878763 - 2⁴ = 981878747 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (981879763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7114995 + ... + 7115132.

It is an arithmetic number, because the mean of its divisors is an integer number (170761536).

Almost surely, 2^981878763 is an apocalyptic number.

981878763 is a deficient number, since it is larger than the sum of its proper divisors (384213525).

981878763 is a wasteful number, since it uses less digits than its factorization.

981878763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14230153.

The product of its digits is 4064256, while the sum is 57.

The square root of 981878763 is about 31334.9447582088. The cubic root of 981878763 is about 993.9227292648.

The spelling of 981878763 in words is "nine hundred eighty-one million, eight hundred seventy-eight thousand, seven hundred sixty-three".