76872578 has 16 divisors (see below), whose sum is σ = 122596416. Its totient is φ = 36070320.

The previous prime is 76872571. The next prime is 76872599. The reversal of 76872578 is 87527867.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76872571) 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, 13328 + ... + 18203.

It is an arithmetic number, because the mean of its divisors is an integer number (7662276).

Almost surely, 2^76872578 is an apocalyptic number.

76872578 is a deficient number, since it is larger than the sum of its proper divisors (45723838).

76872578 is a wasteful number, since it uses less digits than its factorization.

76872578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31609.

The product of its digits is 1317120, while the sum is 50.

The square root of 76872578 is about 8767.7008388745. The cubic root of 76872578 is about 425.1972841854.

The spelling of 76872578 in words is "seventy-six million, eight hundred seventy-two thousand, five hundred seventy-eight".