307768986 has 96 divisors (see below), whose sum is σ = 822451968. Its totient is φ = 81169920.

The previous prime is 307768943. The next prime is 307768991. The reversal of 307768986 is 689867703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112171 + ... + 114881.

It is an arithmetic number, because the mean of its divisors is an integer number (8567208).

Almost surely, 2^307768986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307768986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411225984).

307768986 is an abundant number, since it is smaller than the sum of its proper divisors (514682982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

307768986 is a wasteful number, since it uses less digits than its factorization.

307768986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 307768986 is about 17543.3459180397. The cubic root of 307768986 is about 675.1624563707.

The spelling of 307768986 in words is "three hundred seven million, seven hundred sixty-eight thousand, nine hundred eighty-six".