768213247 has 8 divisors (see below), whose sum is σ = 776067840. Its totient is φ = 760398240.

The previous prime is 768213227. The next prime is 768213253. The reversal of 768213247 is 742312867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-768213247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768213227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29922 + ... + 49312.

It is an arithmetic number, because the mean of its divisors is an integer number (97008480).

Almost surely, 2^768213247 is an apocalyptic number.

768213247 is a deficient number, since it is larger than the sum of its proper divisors (7854593).

768213247 is a wasteful number, since it uses less digits than its factorization.

768213247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19793.

The product of its digits is 112896, while the sum is 40.

The square root of 768213247 is about 27716.6600982153. The cubic root of 768213247 is about 915.8561455316.

The spelling of 768213247 in words is "seven hundred sixty-eight million, two hundred thirteen thousand, two hundred forty-seven".