276322649 has 4 divisors (see below), whose sum is σ = 277033380. Its totient is φ = 275611920.

The previous prime is 276322633. The next prime is 276322691. The reversal of 276322649 is 946223672.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39778249 + 236544400 = 6307^2 + 15380^2 .

It is a cyclic number.

It is not a de Polignac number, because 276322649 - 2⁴ = 276322633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276322609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354782 + ... + 355559.

It is an arithmetic number, because the mean of its divisors is an integer number (69258345).

Almost surely, 2^276322649 is an apocalyptic number.

It is an amenable number.

276322649 is a deficient number, since it is larger than the sum of its proper divisors (710731).

276322649 is an equidigital number, since it uses as much as digits as its factorization.

276322649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710730.

The product of its digits is 217728, while the sum is 41.

The square root of 276322649 is about 16622.9554833068. The cubic root of 276322649 is about 651.3366176300.

The spelling of 276322649 in words is "two hundred seventy-six million, three hundred twenty-two thousand, six hundred forty-nine".