752497649 has 2 divisors, whose sum is σ = 752497650. Its totient is φ = 752497648.

The previous prime is 752497637. The next prime is 752497661. The reversal of 752497649 is 946794257.

It is a balanced prime because it is at equal distance from previous prime (752497637) and next prime (752497661).

It can be written as a sum of positive squares in only one way, i.e., 470022400 + 282475249 = 21680^2 + 16807^2 .

It is a cyclic number.

It is not a de Polignac number, because 752497649 - 2⁴ = 752497633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 752497649.

It is not a weakly prime, because it can be changed into another prime (752497609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376248824 + 376248825.

It is an arithmetic number, because the mean of its divisors is an integer number (376248825).

Almost surely, 2^752497649 is an apocalyptic number.

It is an amenable number.

752497649 is a deficient number, since it is larger than the sum of its proper divisors (1).

752497649 is an equidigital number, since it uses as much as digits as its factorization.

752497649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 53.

The square root of 752497649 is about 27431.6905968261. The cubic root of 752497649 is about 909.5677410080.

The spelling of 752497649 in words is "seven hundred fifty-two million, four hundred ninety-seven thousand, six hundred forty-nine".