76381845 has 16 divisors (see below), whose sum is σ = 122426880. Its totient is φ = 40665024.

The previous prime is 76381841. The next prime is 76381849. The reversal of 76381845 is 54818367.

It is an interprime number because it is at equal distance from previous prime (76381841) and next prime (76381849).

It is not a de Polignac number, because 76381845 - 2² = 76381841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76381797 and 76381806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76381841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4911 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (7651680).

Almost surely, 2^76381845 is an apocalyptic number.

It is an amenable number.

76381845 is a deficient number, since it is larger than the sum of its proper divisors (46045035).

76381845 is a wasteful number, since it uses less digits than its factorization.

76381845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004.

The product of its digits is 161280, while the sum is 42.

The square root of 76381845 is about 8739.6707603891. The cubic root of 76381845 is about 424.2905719301.

The spelling of 76381845 in words is "seventy-six million, three hundred eighty-one thousand, eight hundred forty-five".