75423427 has 8 divisors (see below), whose sum is σ = 77837072. Its totient is φ = 73029600.

The previous prime is 75423401. The next prime is 75423431. The reversal of 75423427 is 72432457.

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

It is a cyclic number.

It is not a de Polignac number, because 75423427 - 2¹⁵ = 75390659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75423392 and 75423401.

It is not an unprimeable number, because it can be changed into a prime (75423457) 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, 2977 + ... + 12637.

It is an arithmetic number, because the mean of its divisors is an integer number (9729634).

Almost surely, 2^75423427 is an apocalyptic number.

75423427 is a deficient number, since it is larger than the sum of its proper divisors (2413645).

75423427 is a wasteful number, since it uses less digits than its factorization.

75423427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909.

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

The square root of 75423427 is about 8684.6661996878. Note that the first 3 decimals coincide. The cubic root of 75423427 is about 422.5084708221.

The spelling of 75423427 in words is "seventy-five million, four hundred twenty-three thousand, four hundred twenty-seven".