274763729 has 2 divisors, whose sum is σ = 274763730. Its totient is φ = 274763728.

The previous prime is 274763711. The next prime is 274763743. The reversal of 274763729 is 927367472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183656704 + 91107025 = 13552^2 + 9545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274763729 is a prime.

It is not a weakly prime, because it can be changed into another prime (274763789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137381864 + 137381865.

It is an arithmetic number, because the mean of its divisors is an integer number (137381865).

Almost surely, 2^274763729 is an apocalyptic number.

It is an amenable number.

274763729 is a deficient number, since it is larger than the sum of its proper divisors (1).

274763729 is an equidigital number, since it uses as much as digits as its factorization.

274763729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 47.

The square root of 274763729 is about 16575.9985822876. The cubic root of 274763729 is about 650.1094324627.

Adding to 274763729 its sum of digits (47), we get a square (274763776 = 16576²).

The spelling of 274763729 in words is "two hundred seventy-four million, seven hundred sixty-three thousand, seven hundred twenty-nine".