76116389 has 4 divisors (see below), whose sum is σ = 76216140. Its totient is φ = 76016640.

The previous prime is 76116373. The next prime is 76116401. The reversal of 76116389 is 98361167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 60450625 = 3958^2 + 7775^2 .

It is a cyclic number.

It is not a de Polignac number, because 76116389 - 2⁴ = 76116373 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 (76116319) 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, 48722 + ... + 50259.

It is an arithmetic number, because the mean of its divisors is an integer number (19054035).

Almost surely, 2^76116389 is an apocalyptic number.

It is an amenable number.

76116389 is a deficient number, since it is larger than the sum of its proper divisors (99751).

76116389 is an equidigital number, since it uses as much as digits as its factorization.

76116389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99750.

The product of its digits is 54432, while the sum is 41.

The square root of 76116389 is about 8724.4707002775. The cubic root of 76116389 is about 423.7984776438.

The spelling of 76116389 in words is "seventy-six million, one hundred sixteen thousand, three hundred eighty-nine".