75423743 has 4 divisors (see below), whose sum is σ = 75724488. Its totient is φ = 75123000.

The previous prime is 75423703. The next prime is 75423773. The reversal of 75423743 is 34732457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34732457 = 457 ⋅76001.

It is a cyclic number.

It is not a de Polignac number, because 75423743 - 2¹² = 75419647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75423703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149996 + ... + 150497.

It is an arithmetic number, because the mean of its divisors is an integer number (18931122).

Almost surely, 2^75423743 is an apocalyptic number.

75423743 is a deficient number, since it is larger than the sum of its proper divisors (300745).

75423743 is a wasteful number, since it uses less digits than its factorization.

75423743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300744.

The product of its digits is 70560, while the sum is 35.

The square root of 75423743 is about 8684.6843926535. The cubic root of 75423743 is about 422.5090608796.

The spelling of 75423743 in words is "seventy-five million, four hundred twenty-three thousand, seven hundred forty-three".