75740791 has 4 divisors (see below), whose sum is σ = 86560912. Its totient is φ = 64920672.

The previous prime is 75740789. The next prime is 75740857. The reversal of 75740791 is 19704757.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19704757 = 37 ⋅532561.

It is a cyclic number.

It is not a de Polignac number, because 75740791 - 2¹ = 75740789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75740191) 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, 5410050 + ... + 5410063.

It is an arithmetic number, because the mean of its divisors is an integer number (21640228).

Almost surely, 2^75740791 is an apocalyptic number.

75740791 is a deficient number, since it is larger than the sum of its proper divisors (10820121).

75740791 is a wasteful number, since it uses less digits than its factorization.

75740791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820120.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 75740791 is about 8702.9185334576. The cubic root of 75740791 is about 423.1002469252.

The spelling of 75740791 in words is "seventy-five million, seven hundred forty thousand, seven hundred ninety-one".