276828089 has 4 divisors (see below), whose sum is σ = 278047824. Its totient is φ = 275608356.

The previous prime is 276828049. The next prime is 276828103. The reversal of 276828089 is 980828672.

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 276828089 - 2²⁴ = 260050873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276828049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 609527 + ... + 609980.

It is an arithmetic number, because the mean of its divisors is an integer number (69511956).

Almost surely, 2^276828089 is an apocalyptic number.

It is an amenable number.

276828089 is a deficient number, since it is larger than the sum of its proper divisors (1219735).

276828089 is a wasteful number, since it uses less digits than its factorization.

276828089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219734.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 276828089 is about 16638.1516100798. The cubic root of 276828089 is about 651.7335100037.

The spelling of 276828089 in words is "two hundred seventy-six million, eight hundred twenty-eight thousand, eighty-nine".