328015775 has 6 divisors (see below), whose sum is σ = 406739592. Its totient is φ = 262412600.

The previous prime is 328015763. The next prime is 328015801. The reversal of 328015775 is 577510823.

It is a happy number.

It is not a de Polignac number, because 328015775 - 2⁴ = 328015759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6560291 + ... + 6560340.

It is an arithmetic number, because the mean of its divisors is an integer number (67789932).

Almost surely, 2^328015775 is an apocalyptic number.

328015775 is a deficient number, since it is larger than the sum of its proper divisors (78723817).

328015775 is a wasteful number, since it uses less digits than its factorization.

328015775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13120641 (or 13120636 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 328015775 is about 18111.2057853695. The cubic root of 328015775 is about 689.6545039210.

The spelling of 328015775 in words is "three hundred twenty-eight million, fifteen thousand, seven hundred seventy-five".