328590887 has 2 divisors, whose sum is σ = 328590888. Its totient is φ = 328590886.

The previous prime is 328590863. The next prime is 328590893. The reversal of 328590887 is 788095823.

It is a strong prime.

It is an emirp because it is prime and its reverse (788095823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328590887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328590817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164295443 + 164295444.

It is an arithmetic number, because the mean of its divisors is an integer number (164295444).

Almost surely, 2^328590887 is an apocalyptic number.

328590887 is a deficient number, since it is larger than the sum of its proper divisors (1).

328590887 is an equidigital number, since it uses as much as digits as its factorization.

328590887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 328590887 is about 18127.0760742046. The cubic root of 328590887 is about 690.0573270300.

The spelling of 328590887 in words is "three hundred twenty-eight million, five hundred ninety thousand, eight hundred eighty-seven".