75789681 has 12 divisors (see below), whose sum is σ = 111075216. Its totient is φ = 45932920.

The previous prime is 75789671. The next prime is 75789691. The reversal of 75789681 is 18698757.

It is an interprime number because it is at equal distance from previous prime (75789671) and next prime (75789691).

It is not a de Polignac number, because 75789681 - 2⁹ = 75789169 is a prime.

It is a super-4 number, since 4×75789681⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (75789631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104031 + ... + 104756.

It is an arithmetic number, because the mean of its divisors is an integer number (9256268).

Almost surely, 2^75789681 is an apocalyptic number.

It is an amenable number.

75789681 is a deficient number, since it is larger than the sum of its proper divisors (35285535).

75789681 is a wasteful number, since it uses less digits than its factorization.

75789681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208812 (or 208801 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 75789681 is about 8705.7269081910. The cubic root of 75789681 is about 423.1912631471.

The spelling of 75789681 in words is "seventy-five million, seven hundred eighty-nine thousand, six hundred eighty-one".