768521 has 8 divisors (see below), whose sum is σ = 854784. Its totient is φ = 686160.

The previous prime is 768503. The next prime is 768541. The reversal of 768521 is 125867.

768521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 768521 - 2⁶ = 768457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768541) 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, 551 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (106848).

2⁷⁶⁸⁵²¹ is an apocalyptic number.

It is an amenable number.

768521 is a deficient number, since it is larger than the sum of its proper divisors (86263).

768521 is a wasteful number, since it uses less digits than its factorization.

768521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951.

The product of its digits is 3360, while the sum is 29.

The square root of 768521 is about 876.6532952085. The cubic root of 768521 is about 91.5978429219.

The spelling of 768521 in words is "seven hundred sixty-eight thousand, five hundred twenty-one".