75290329 has 3 divisors (see below), whose sum is σ = 75299007. Its totient is φ = 75281652.

The previous prime is 75290321. The next prime is 75290357. The reversal of 75290329 is 92309257.

The square root of 75290329 is 8677.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92309257 = 461 ⋅200237.

It can be written as a sum of positive squares in only one way, i.e., 19758025 + 55532304 = 4445^2 + 7452^2 .

It is not a de Polignac number, because 75290329 - 2³ = 75290321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75290321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4339 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (25099669).

Almost surely, 2^75290329 is an apocalyptic number.

75290329 is the 8677-th square number.

75290329 is the 4339-th centered octagonal number.

It is an amenable number.

75290329 is a deficient number, since it is larger than the sum of its proper divisors (8678).

75290329 is an frugal number, since it uses more digits than its factorization.

75290329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17354 (or 8677 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The cubic root of 75290329 is about 422.2597941352.

The spelling of 75290329 in words is "seventy-five million, two hundred ninety thousand, three hundred twenty-nine".