75634633 has 2 divisors, whose sum is σ = 75634634. Its totient is φ = 75634632.

The previous prime is 75634631. The next prime is 75634661. The reversal of 75634633 is 33643657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 27373824 = 6947^2 + 5232^2 .

It is a cyclic number.

It is not a de Polignac number, because 75634633 - 2¹ = 75634631 is a prime.

Together with 75634631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 75634592 and 75634601.

It is not a weakly prime, because it can be changed into another prime (75634631) 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, 37817316 + 37817317.

It is an arithmetic number, because the mean of its divisors is an integer number (37817317).

Almost surely, 2^75634633 is an apocalyptic number.

It is an amenable number.

75634633 is a deficient number, since it is larger than the sum of its proper divisors (1).

75634633 is an equidigital number, since it uses as much as digits as its factorization.

75634633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 37.

The square root of 75634633 is about 8696.8174063849. The cubic root of 75634633 is about 422.9024826108.

It can be divided in two parts, 75634 and 633, that added together give a palindrome (76267).

The spelling of 75634633 in words is "seventy-five million, six hundred thirty-four thousand, six hundred thirty-three".