276393 has 16 divisors (see below), whose sum is σ = 418880. Its totient is φ = 160704.

The previous prime is 276389. The next prime is 276401. The reversal of 276393 is 393672.

It is a happy number.

It is not a de Polignac number, because 276393 - 2² = 276389 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 276393.

It is not an unprimeable number, because it can be changed into a prime (276323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (26180).

2²⁷⁶³⁹³ is an apocalyptic number.

It is an amenable number.

276393 is a deficient number, since it is larger than the sum of its proper divisors (142487).

276393 is a wasteful number, since it uses less digits than its factorization.

276393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 6804, while the sum is 30.

The square root of 276393 is about 525.7309197679. The cubic root of 276393 is about 65.1391889121.

The spelling of 276393 in words is "two hundred seventy-six thousand, three hundred ninety-three".