75981412 has 12 divisors (see below), whose sum is σ = 143195836. Its totient is φ = 35068320.

The previous prime is 75981407. The next prime is 75981419. The reversal of 75981412 is 21418957.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 72318016 = 1914^2 + 8504^2 .

It is not an unprimeable number, because it can be changed into a prime (75981419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730539 + ... + 730642.

Almost surely, 2^75981412 is an apocalyptic number.

It is an amenable number.

75981412 is a deficient number, since it is larger than the sum of its proper divisors (67214424).

75981412 is a wasteful number, since it uses less digits than its factorization.

75981412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461198 (or 1461196 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 75981412 is about 8716.7317269720. The cubic root of 75981412 is about 423.5478225006.

The spelling of 75981412 in words is "seventy-five million, nine hundred eighty-one thousand, four hundred twelve".