75845641 has 4 divisors (see below), whose sum is σ = 75889872. Its totient is φ = 75801412.

The previous prime is 75845633. The next prime is 75845669. The reversal of 75845641 is 14654857.

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.

It is a cyclic number.

It is not a de Polignac number, because 75845641 - 2³ = 75845633 is a prime.

It is a super-2 number, since 2×75845641² = 11505122517401762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75845594 and 75845603.

It is not an unprimeable number, because it can be changed into a prime (75845681) 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, 19435 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (18972468).

Almost surely, 2^75845641 is an apocalyptic number.

It is an amenable number.

75845641 is a deficient number, since it is larger than the sum of its proper divisors (44231).

75845641 is a wasteful number, since it uses less digits than its factorization.

75845641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44230.

The product of its digits is 134400, while the sum is 40.

The square root of 75845641 is about 8708.9402914476. The cubic root of 75845641 is about 423.2953932284.

It can be divided in two parts, 7584 and 5641, that added together give a square (13225 = 115²).

The spelling of 75845641 in words is "seventy-five million, eight hundred forty-five thousand, six hundred forty-one".