75732745 has 16 divisors (see below), whose sum is σ = 101253888. Its totient is φ = 53904640.

The previous prime is 75732743. The next prime is 75732751. The reversal of 75732745 is 54723757.

It is a happy number.

It is not a de Polignac number, because 75732745 - 2¹ = 75732743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75732698 and 75732707.

It is not an unprimeable number, because it can be changed into a prime (75732743) 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 15 ways as a sum of consecutive naturals, for example, 12064 + ... + 17233.

It is an arithmetic number, because the mean of its divisors is an integer number (6328368).

Almost surely, 2^75732745 is an apocalyptic number.

It is an amenable number.

75732745 is a deficient number, since it is larger than the sum of its proper divisors (25521143).

75732745 is a wasteful number, since it uses less digits than its factorization.

75732745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29360.

The product of its digits is 205800, while the sum is 40.

The square root of 75732745 is about 8702.4562624583. The cubic root of 75732745 is about 423.0852643111.

The spelling of 75732745 in words is "seventy-five million, seven hundred thirty-two thousand, seven hundred forty-five".