768425986 has 4 divisors (see below), whose sum is σ = 1152638982. Its totient is φ = 384212992.

The previous prime is 768425947. The next prime is 768425989. The reversal of 768425986 is 689524867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 417425761 + 351000225 = 20431^2 + 18735^2 .

It is not an unprimeable number, because it can be changed into a prime (768425989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192106495 + ... + 192106498.

Almost surely, 2^768425986 is an apocalyptic number.

768425986 is a deficient number, since it is larger than the sum of its proper divisors (384212996).

768425986 is a wasteful number, since it uses less digits than its factorization.

768425986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384212995.

The product of its digits is 5806080, while the sum is 55.

The square root of 768425986 is about 27720.4975785068. The cubic root of 768425986 is about 915.9406794978.

It can be divided in two parts, 76842 and 5986, that added together give a palindrome (82828).

The spelling of 768425986 in words is "seven hundred sixty-eight million, four hundred twenty-five thousand, nine hundred eighty-six".