75324427 has 4 divisors (see below), whose sum is σ = 75453336. Its totient is φ = 75195520.

The previous prime is 75324413. The next prime is 75324437. The reversal of 75324427 is 72442357.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75324427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75324392 and 75324401.

It is not an unprimeable number, because it can be changed into a prime (75324407) 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, 63574 + ... + 64747.

It is an arithmetic number, because the mean of its divisors is an integer number (18863334).

Almost surely, 2^75324427 is an apocalyptic number.

75324427 is a deficient number, since it is larger than the sum of its proper divisors (128909).

75324427 is a wasteful number, since it uses less digits than its factorization.

75324427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128908.

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

The square root of 75324427 is about 8678.9646271891. The cubic root of 75324427 is about 422.3235298173.

The spelling of 75324427 in words is "seventy-five million, three hundred twenty-four thousand, four hundred twenty-seven".