75949633 has 2 divisors, whose sum is σ = 75949634. Its totient is φ = 75949632.

The previous prime is 75949609. The next prime is 75949667. The reversal of 75949633 is 33694957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75134224 + 815409 = 8668^2 + 903^2 .

It is an emirp because it is prime and its reverse (33694957) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75949633 - 2⁹ = 75949121 is a prime.

It is not a weakly prime, because it can be changed into another prime (75949033) 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, 37974816 + 37974817.

It is an arithmetic number, because the mean of its divisors is an integer number (37974817).

Almost surely, 2^75949633 is an apocalyptic number.

It is an amenable number.

75949633 is a deficient number, since it is larger than the sum of its proper divisors (1).

75949633 is an equidigital number, since it uses as much as digits as its factorization.

75949633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 46.

The square root of 75949633 is about 8714.9086627457. The cubic root of 75949633 is about 423.4887650599.

The spelling of 75949633 in words is "seventy-five million, nine hundred forty-nine thousand, six hundred thirty-three".