75304641 has 4 divisors (see below), whose sum is σ = 100406192. Its totient is φ = 50203092.

The previous prime is 75304637. The next prime is 75304661. The reversal of 75304641 is 14640357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14640357 = 3 ⋅4880119.

It is not a de Polignac number, because 75304641 - 2² = 75304637 is a prime.

It is a super-2 number, since 2×75304641² = 11341577912277762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75304599 and 75304608.

It is not an unprimeable number, because it can be changed into a prime (75304601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12550771 + ... + 12550776.

It is an arithmetic number, because the mean of its divisors is an integer number (25101548).

Almost surely, 2^75304641 is an apocalyptic number.

It is an amenable number.

75304641 is a deficient number, since it is larger than the sum of its proper divisors (25101551).

75304641 is a wasteful number, since it uses less digits than its factorization.

75304641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25101550.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 75304641 is about 8677.8246698121. The cubic root of 75304641 is about 422.2865483429.

Adding to 75304641 its reverse (14640357), we get a palindrome (89944998).

The spelling of 75304641 in words is "seventy-five million, three hundred four thousand, six hundred forty-one".