75424723 has 8 divisors (see below), whose sum is σ = 82408896. Its totient is φ = 68461800.

The previous prime is 75424721. The next prime is 75424729. The reversal of 75424723 is 32742457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75424723 - 2¹ = 75424721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75424721) 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 7 ways as a sum of consecutive naturals, for example, 2640 + ... + 12562.

It is an arithmetic number, because the mean of its divisors is an integer number (10301112).

Almost surely, 2^75424723 is an apocalyptic number.

75424723 is a deficient number, since it is larger than the sum of its proper divisors (6984173).

75424723 is a wasteful number, since it uses less digits than its factorization.

75424723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625.

The product of its digits is 47040, while the sum is 34.

The square root of 75424723 is about 8684.7408136340. The cubic root of 75424723 is about 422.5108907945.

The spelling of 75424723 in words is "seventy-five million, four hundred twenty-four thousand, seven hundred twenty-three".