76381546 has 4 divisors (see below), whose sum is σ = 114572322. Its totient is φ = 38190772.

The previous prime is 76381537. The next prime is 76381549. The reversal of 76381546 is 64518367.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64518367 = 113 ⋅570959.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 1990921 = 8625^2 + 1411^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 76381499 and 76381508.

It is not an unprimeable number, because it can be changed into a prime (76381549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19095385 + ... + 19095388.

Almost surely, 2^76381546 is an apocalyptic number.

76381546 is a deficient number, since it is larger than the sum of its proper divisors (38190776).

76381546 is a wasteful number, since it uses less digits than its factorization.

76381546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38190775.

The product of its digits is 120960, while the sum is 40.

The square root of 76381546 is about 8739.6536544648. The cubic root of 76381546 is about 424.2900182948.

The spelling of 76381546 in words is "seventy-six million, three hundred eighty-one thousand, five hundred forty-six".