75499967 has 2 divisors, whose sum is σ = 75499968. Its totient is φ = 75499966.

The previous prime is 75499937. The next prime is 75499969. The reversal of 75499967 is 76999457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75499967 - 2¹⁸ = 75237823 is a prime.

Together with 75499969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75499969) 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, 37749983 + 37749984.

It is an arithmetic number, because the mean of its divisors is an integer number (37749984).

Almost surely, 2^75499967 is an apocalyptic number.

75499967 is a deficient number, since it is larger than the sum of its proper divisors (1).

75499967 is an equidigital number, since it uses as much as digits as its factorization.

75499967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 56.

The square root of 75499967 is about 8689.0716995546. The cubic root of 75499967 is about 422.6513436076.

The spelling of 75499967 in words is "seventy-five million, four hundred ninety-nine thousand, nine hundred sixty-seven".