768390 has 32 divisors (see below), whose sum is σ = 2108160. Its totient is φ = 175584.

The previous prime is 768389. The next prime is 768401. The reversal of 768390 is 93867.

It is a happy number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (65880).

2⁷⁶⁸³⁹⁰ is an apocalyptic number.

768390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

768390 is an abundant number, since it is smaller than the sum of its proper divisors (1339770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768390 is a wasteful number, since it uses less digits than its factorization.

768390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 768390 is about 876.5785760558. The cubic root of 768390 is about 91.5926381198.

The spelling of 768390 in words is "seven hundred sixty-eight thousand, three hundred ninety".