75406743 has 12 divisors (see below), whose sum is σ = 109017688. Its totient is φ = 50226480.

The previous prime is 75406739. The next prime is 75406759. The reversal of 75406743 is 34760457.

It is not a de Polignac number, because 75406743 - 2² = 75406739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75406698 and 75406707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75446743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9396 + ... + 15462.

Almost surely, 2^75406743 is an apocalyptic number.

75406743 is a deficient number, since it is larger than the sum of its proper divisors (33610945).

75406743 is a wasteful number, since it uses less digits than its factorization.

75406743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7454 (or 7451 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 75406743 is about 8683.7056030246. The cubic root of 75406743 is about 422.4773149357.

The spelling of 75406743 in words is "seventy-five million, four hundred six thousand, seven hundred forty-three".