2732820257 has 2 divisors, whose sum is σ = 2732820258. Its totient is φ = 2732820256.

The previous prime is 2732820247. The next prime is 2732820301. The reversal of 2732820257 is 7520282372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2535726736 + 197093521 = 50356^2 + 14039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2732820257 - 2¹² = 2732816161 is a prime.

It is a super-3 number, since 3×2732820257³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2732820257.

It is not a weakly prime, because it can be changed into another prime (2732820247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366410128 + 1366410129.

It is an arithmetic number, because the mean of its divisors is an integer number (1366410129).

Almost surely, 2^2732820257 is an apocalyptic number.

It is an amenable number.

2732820257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732820257 is an equidigital number, since it uses as much as digits as its factorization.

2732820257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2732820257 is about 52276.3833580710. The cubic root of 2732820257 is about 1398.0960951558.

The spelling of 2732820257 in words is "two billion, seven hundred thirty-two million, eight hundred twenty thousand, two hundred fifty-seven".