276230991 has 16 divisors (see below), whose sum is σ = 373593600. Its totient is φ = 181524288.

The previous prime is 276230963. The next prime is 276230993. The reversal of 276230991 is 199032672.

It is not a de Polignac number, because 276230991 - 2⁵ = 276230959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276230993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96580 + ... + 99398.

It is an arithmetic number, because the mean of its divisors is an integer number (23349600).

Almost surely, 2^276230991 is an apocalyptic number.

276230991 is a deficient number, since it is larger than the sum of its proper divisors (97362609).

276230991 is a wasteful number, since it uses less digits than its factorization.

276230991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 276230991 is about 16620.1982840157. The cubic root of 276230991 is about 651.2645921505.

The spelling of 276230991 in words is "two hundred seventy-six million, two hundred thirty thousand, nine hundred ninety-one".