754653649 has 2 divisors, whose sum is σ = 754653650. Its totient is φ = 754653648.

The previous prime is 754653619. The next prime is 754653661. The reversal of 754653649 is 946356457.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558849600 + 195804049 = 23640^2 + 13993^2 .

It is a cyclic number.

It is not a de Polignac number, because 754653649 - 2⁷ = 754653521 is a prime.

It is not a weakly prime, because it can be changed into another prime (754653619) 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, 377326824 + 377326825.

It is an arithmetic number, because the mean of its divisors is an integer number (377326825).

Almost surely, 2^754653649 is an apocalyptic number.

It is an amenable number.

754653649 is a deficient number, since it is larger than the sum of its proper divisors (1).

754653649 is an equidigital number, since it uses as much as digits as its factorization.

754653649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 49.

The square root of 754653649 is about 27470.9601033528. The cubic root of 754653649 is about 910.4355878662.

The spelling of 754653649 in words is "seven hundred fifty-four million, six hundred fifty-three thousand, six hundred forty-nine".