76775144 has 16 divisors (see below), whose sum is σ = 144418020. Its totient is φ = 38263680.

The previous prime is 76775137. The next prime is 76775147. The reversal of 76775144 is 44157767.

It can be written as a sum of positive squares in 2 ways, for example, as 76772644 + 2500 = 8762^2 + 50^2 .

It is not an unprimeable number, because it can be changed into a prime (76775147) 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, 12827 + ... + 17834.

Almost surely, 2^76775144 is an apocalyptic number.

It is an amenable number.

76775144 is a deficient number, since it is larger than the sum of its proper divisors (67642876).

76775144 is a wasteful number, since it uses less digits than its factorization.

76775144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30980 (or 30976 counting only the distinct ones).

The product of its digits is 164640, while the sum is 41.

The square root of 76775144 is about 8762.1426603314. The cubic root of 76775144 is about 425.0175660560.

It can be divided in two parts, 7677 and 5144, that added together give a palindrome (12821).

The spelling of 76775144 in words is "seventy-six million, seven hundred seventy-five thousand, one hundred forty-four".