276645433 has 2 divisors, whose sum is σ = 276645434. Its totient is φ = 276645432.

The previous prime is 276645401. The next prime is 276645451. The reversal of 276645433 is 334546672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254338704 + 22306729 = 15948^2 + 4723^2 .

It is a cyclic number.

It is not a de Polignac number, because 276645433 - 2⁵ = 276645401 is a prime.

It is not a weakly prime, because it can be changed into another prime (276645463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138322716 + 138322717.

It is an arithmetic number, because the mean of its divisors is an integer number (138322717).

Almost surely, 2^276645433 is an apocalyptic number.

It is an amenable number.

276645433 is a deficient number, since it is larger than the sum of its proper divisors (1).

276645433 is an equidigital number, since it uses as much as digits as its factorization.

276645433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 40.

The square root of 276645433 is about 16632.6616330640. The cubic root of 276645433 is about 651.5901367544.

The spelling of 276645433 in words is "two hundred seventy-six million, six hundred forty-five thousand, four hundred thirty-three".