328475549 has 4 divisors (see below), whose sum is σ = 331664736. Its totient is φ = 325286364.

The previous prime is 328475531. The next prime is 328475573. The reversal of 328475549 is 945574823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 328475549 - 2²⁴ = 311698333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328475579) 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, 1594439 + ... + 1594644.

It is an arithmetic number, because the mean of its divisors is an integer number (82916184).

Almost surely, 2^328475549 is an apocalyptic number.

It is an amenable number.

328475549 is a deficient number, since it is larger than the sum of its proper divisors (3189187).

328475549 is a wasteful number, since it uses less digits than its factorization.

328475549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189186.

The product of its digits is 1209600, while the sum is 47.

The square root of 328475549 is about 18123.8944214537. The cubic root of 328475549 is about 689.9765790552.

The spelling of 328475549 in words is "three hundred twenty-eight million, four hundred seventy-five thousand, five hundred forty-nine".