75429743 has 2 divisors, whose sum is σ = 75429744. Its totient is φ = 75429742.

The previous prime is 75429721. The next prime is 75429769. The reversal of 75429743 is 34792457.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75429743 is a prime.

It is a super-2 number, since 2×75429743² = 11379292258092098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75429743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75429773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37714871 + 37714872.

It is an arithmetic number, because the mean of its divisors is an integer number (37714872).

Almost surely, 2^75429743 is an apocalyptic number.

75429743 is a deficient number, since it is larger than the sum of its proper divisors (1).

75429743 is an equidigital number, since it uses as much as digits as its factorization.

75429743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 41.

The square root of 75429743 is about 8685.0298214802. The cubic root of 75429743 is about 422.5202641915.

The spelling of 75429743 in words is "seventy-five million, four hundred twenty-nine thousand, seven hundred forty-three".