76541978 has 16 divisors (see below), whose sum is σ = 118637376. Its totient is φ = 37013760.

The previous prime is 76541977. The next prime is 76541981. The reversal of 76541978 is 87914567.

It is not an unprimeable number, because it can be changed into a prime (76541977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (7414836).

Almost surely, 2^76541978 is an apocalyptic number.

76541978 is a deficient number, since it is larger than the sum of its proper divisors (42095398).

76541978 is a wasteful number, since it uses less digits than its factorization.

76541978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789.

The product of its digits is 423360, while the sum is 47.

The square root of 76541978 is about 8748.8272356928. The cubic root of 76541978 is about 424.5868705119.

The spelling of 76541978 in words is "seventy-six million, five hundred forty-one thousand, nine hundred seventy-eight".