75484427 has 4 divisors (see below), whose sum is σ = 76060776. Its totient is φ = 74908080.

The previous prime is 75484391. The next prime is 75484429. The reversal of 75484427 is 72448457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72448457 = 31 ⋅2337047.

It is a cyclic number.

It is not a de Polignac number, because 75484427 - 2¹⁰ = 75483403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75484429) 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, 287978 + ... + 288239.

It is an arithmetic number, because the mean of its divisors is an integer number (19015194).

Almost surely, 2^75484427 is an apocalyptic number.

75484427 is a deficient number, since it is larger than the sum of its proper divisors (576349).

75484427 is a wasteful number, since it uses less digits than its factorization.

75484427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576348.

The product of its digits is 250880, while the sum is 41.

The square root of 75484427 is about 8688.1774268255. The cubic root of 75484427 is about 422.6223438044.

The spelling of 75484427 in words is "seventy-five million, four hundred eighty-four thousand, four hundred twenty-seven".