276729797 has 2 divisors, whose sum is σ = 276729798. Its totient is φ = 276729796.

The previous prime is 276729793. The next prime is 276729823. The reversal of 276729797 is 797927672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226021156 + 50708641 = 15034^2 + 7121^2 .

It is a cyclic number.

It is not a de Polignac number, because 276729797 - 2² = 276729793 is a prime.

It is a super-2 number, since 2×276729797² = 153158761095322418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276729793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138364898 + 138364899.

It is an arithmetic number, because the mean of its divisors is an integer number (138364899).

Almost surely, 2^276729797 is an apocalyptic number.

It is an amenable number.

276729797 is a deficient number, since it is larger than the sum of its proper divisors (1).

276729797 is an equidigital number, since it uses as much as digits as its factorization.

276729797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 56.

The square root of 276729797 is about 16635.1975341443. The cubic root of 276729797 is about 651.6563649258.

The spelling of 276729797 in words is "two hundred seventy-six million, seven hundred twenty-nine thousand, seven hundred ninety-seven".