75638023 has 2 divisors, whose sum is σ = 75638024. Its totient is φ = 75638022.

The previous prime is 75638021. The next prime is 75638029. The reversal of 75638023 is 32083657.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75638023 - 2¹ = 75638021 is a prime.

It is a super-2 number, since 2×75638023² = 11442221046697058, which contains 22 as substring.

Together with 75638021, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 75638023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75638021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37819011 + 37819012.

It is an arithmetic number, because the mean of its divisors is an integer number (37819012).

Almost surely, 2^75638023 is an apocalyptic number.

75638023 is a deficient number, since it is larger than the sum of its proper divisors (1).

75638023 is an equidigital number, since it uses as much as digits as its factorization.

75638023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 75638023 is about 8697.0123030843. The cubic root of 75638023 is about 422.9088007834.

The spelling of 75638023 in words is "seventy-five million, six hundred thirty-eight thousand, twenty-three".