75406736 has 20 divisors (see below), whose sum is σ = 148497564. Its totient is φ = 37084800.

The previous prime is 75406711. The next prime is 75406739. The reversal of 75406736 is 63760457.

It can be written as a sum of positive squares in 2 ways, for example, as 25563136 + 49843600 = 5056^2 + 7060^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75406736.

It is not an unprimeable number, because it can be changed into a prime (75406739) 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, 37655 + ... + 39606.

Almost surely, 2^75406736 is an apocalyptic number.

It is an amenable number.

75406736 is a deficient number, since it is larger than the sum of its proper divisors (73090828).

75406736 is a wasteful number, since it uses less digits than its factorization.

75406736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77330 (or 77324 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 75406736 is about 8683.7051999708. The cubic root of 75406736 is about 422.4773018629.

The spelling of 75406736 in words is "seventy-five million, four hundred six thousand, seven hundred thirty-six".