786305668 has 24 divisors (see below), whose sum is σ = 1416488472. Its totient is φ = 381748224.

The previous prime is 786305659. The next prime is 786305711. The reversal of 786305668 is 866503687.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171662404 + 614643264 = 13102^2 + 24792^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446 + ... + 39682.

It is an arithmetic number, because the mean of its divisors is an integer number (59020353).

Almost surely, 2^786305668 is an apocalyptic number.

It is an amenable number.

786305668 is a deficient number, since it is larger than the sum of its proper divisors (630182804).

786305668 is a wasteful number, since it uses less digits than its factorization.

786305668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38391 (or 38389 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 786305668 is about 28041.1424161000. The cubic root of 786305668 is about 922.9902968202.

The spelling of 786305668 in words is "seven hundred eighty-six million, three hundred five thousand, six hundred sixty-eight".