276214891 has 2 divisors, whose sum is σ = 276214892. Its totient is φ = 276214890.

The previous prime is 276214877. The next prime is 276214927. The reversal of 276214891 is 198412672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 276214891 - 2¹³ = 276206699 is a prime.

It is not a weakly prime, because it can be changed into another prime (276214801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138107445 + 138107446.

It is an arithmetic number, because the mean of its divisors is an integer number (138107446).

Almost surely, 2^276214891 is an apocalyptic number.

276214891 is a deficient number, since it is larger than the sum of its proper divisors (1).

276214891 is an equidigital number, since it uses as much as digits as its factorization.

276214891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 276214891 is about 16619.7139265392. The cubic root of 276214891 is about 651.2519390160.

The spelling of 276214891 in words is "two hundred seventy-six million, two hundred fourteen thousand, eight hundred ninety-one".