768004647 has 4 divisors (see below), whose sum is σ = 1024006200. Its totient is φ = 512003096.

The previous prime is 768004637. The next prime is 768004649. The reversal of 768004647 is 746400867.

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

It is a cyclic number.

It is not a de Polignac number, because 768004647 - 2⁷ = 768004519 is a prime.

It is a super-2 number, since 2×768004647² = 1179662275627189218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 768004599 and 768004608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768004649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128000772 + ... + 128000777.

It is an arithmetic number, because the mean of its divisors is an integer number (256001550).

Almost surely, 2^768004647 is an apocalyptic number.

768004647 is a deficient number, since it is larger than the sum of its proper divisors (256001553).

768004647 is a wasteful number, since it uses less digits than its factorization.

768004647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256001552.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 768004647 is about 27712.8967630596. The cubic root of 768004647 is about 915.7732410831.

The spelling of 768004647 in words is "seven hundred sixty-eight million, four thousand, six hundred forty-seven".