75348329 has 6 divisors (see below), whose sum is σ = 87650154. Its totient is φ = 64584240.

The previous prime is 75348289. The next prime is 75348349. The reversal of 75348329 is 92384357.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 5929 = 8680^2 + 77^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75348329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75348349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 768812 + ... + 768909.

It is an arithmetic number, because the mean of its divisors is an integer number (14608359).

Almost surely, 2^75348329 is an apocalyptic number.

It is an amenable number.

75348329 is a deficient number, since it is larger than the sum of its proper divisors (12301825).

75348329 is a wasteful number, since it uses less digits than its factorization.

75348329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537735 (or 1537728 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 75348329 is about 8680.3415255392. The cubic root of 75348329 is about 422.3681957594.

The spelling of 75348329 in words is "seventy-five million, three hundred forty-eight thousand, three hundred twenty-nine".