752681 has 2 divisors, whose sum is σ = 752682. Its totient is φ = 752680.

The previous prime is 752651. The next prime is 752683. The reversal of 752681 is 186257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502681 + 250000 = 709^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 752681 - 2¹⁸ = 490537 is a prime.

It is a super-2 number, since 2×752681² = 1133057375522, which contains 22 as substring.

Together with 752683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (752683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376340 + 376341.

It is an arithmetic number, because the mean of its divisors is an integer number (376341).

2⁷⁵²⁶⁸¹ is an apocalyptic number.

It is an amenable number.

752681 is a deficient number, since it is larger than the sum of its proper divisors (1).

752681 is an equidigital number, since it uses as much as digits as its factorization.

752681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 752681 is about 867.5718990378. The cubic root of 752681 is about 90.9641609062.

The spelling of 752681 in words is "seven hundred fifty-two thousand, six hundred eighty-one".