75791643 has 16 divisors (see below), whose sum is σ = 103576320. Its totient is φ = 49278944.

The previous prime is 75791579. The next prime is 75791659. The reversal of 75791643 is 34619757.

It is a cyclic number.

It is not a de Polignac number, because 75791643 - 2⁶ = 75791579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75791595 and 75791604.

It is not an unprimeable number, because it can be changed into a prime (75791143) 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 15 ways as a sum of consecutive naturals, for example, 27130 + ... + 29792.

It is an arithmetic number, because the mean of its divisors is an integer number (6473520).

Almost surely, 2^75791643 is an apocalyptic number.

75791643 is a deficient number, since it is larger than the sum of its proper divisors (27784677).

75791643 is a wasteful number, since it uses less digits than its factorization.

75791643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898.

The product of its digits is 158760, while the sum is 42.

The square root of 75791643 is about 8705.8395919061. The cubic root of 75791643 is about 423.1949148936.

The spelling of 75791643 in words is "seventy-five million, seven hundred ninety-one thousand, six hundred forty-three".