75478843 has 8 divisors (see below), whose sum is σ = 82446336. Its totient is φ = 68529000.

The previous prime is 75478841. The next prime is 75478859. The reversal of 75478843 is 34887457.

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 75478843 - 2¹ = 75478841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75478793 and 75478802.

It is not an unprimeable number, because it can be changed into a prime (75478841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5518 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (10305792).

Almost surely, 2^75478843 is an apocalyptic number.

75478843 is a deficient number, since it is larger than the sum of its proper divisors (6967493).

75478843 is a wasteful number, since it uses less digits than its factorization.

75478843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825.

The product of its digits is 752640, while the sum is 46.

The square root of 75478843 is about 8687.8560646456. The cubic root of 75478843 is about 422.6119223111.

It can be divided in two parts, 754 and 78843, that added together give a palindrome (79597).

The spelling of 75478843 in words is "seventy-five million, four hundred seventy-eight thousand, eight hundred forty-three".