276472709 has 2 divisors, whose sum is σ = 276472710. Its totient is φ = 276472708.

The previous prime is 276472697. The next prime is 276472727. The reversal of 276472709 is 907274672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252492100 + 23980609 = 15890^2 + 4897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276472709 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 276472709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276472739) 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 as a sum of consecutive naturals, namely, 138236354 + 138236355.

It is an arithmetic number, because the mean of its divisors is an integer number (138236355).

Almost surely, 2^276472709 is an apocalyptic number.

It is an amenable number.

276472709 is a deficient number, since it is larger than the sum of its proper divisors (1).

276472709 is an equidigital number, since it uses as much as digits as its factorization.

276472709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 276472709 is about 16627.4685084651. The cubic root of 276472709 is about 651.4545014224.

The spelling of 276472709 in words is "two hundred seventy-six million, four hundred seventy-two thousand, seven hundred nine".