75709323 has 12 divisors (see below), whose sum is σ = 113408568. Its totient is φ = 50472720.

The previous prime is 75709321. The next prime is 75709349. The reversal of 75709323 is 32390757.

It is a happy number.

It is not a de Polignac number, because 75709323 - 2¹ = 75709321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75709321) 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 11 ways as a sum of consecutive naturals, for example, 155538 + ... + 156023.

It is an arithmetic number, because the mean of its divisors is an integer number (9450714).

Almost surely, 2^75709323 is an apocalyptic number.

75709323 is a deficient number, since it is larger than the sum of its proper divisors (37699245).

75709323 is an equidigital number, since it uses as much as digits as its factorization.

75709323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311576 (or 311564 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 75709323 is about 8701.1104463741. The cubic root of 75709323 is about 423.0416437045.

The spelling of 75709323 in words is "seventy-five million, seven hundred nine thousand, three hundred twenty-three".