768948649 has 4 divisors (see below), whose sum is σ = 878798464. Its totient is φ = 659098836.

The previous prime is 768948643. The next prime is 768948683. The reversal of 768948649 is 946849867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 768948649 - 2¹⁵ = 768915881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768948643) 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 3 ways as a sum of consecutive naturals, for example, 54924897 + ... + 54924910.

It is an arithmetic number, because the mean of its divisors is an integer number (219699616).

Almost surely, 2^768948649 is an apocalyptic number.

It is an amenable number.

768948649 is a deficient number, since it is larger than the sum of its proper divisors (109849815).

768948649 is a wasteful number, since it uses less digits than its factorization.

768948649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109849814.

The product of its digits is 20901888, while the sum is 61.

The square root of 768948649 is about 27729.9233500563. The cubic root of 768948649 is about 916.1482986282.

The spelling of 768948649 in words is "seven hundred sixty-eight million, nine hundred forty-eight thousand, six hundred forty-nine".