328950987 has 4 divisors (see below), whose sum is σ = 438601320. Its totient is φ = 219300656.

The previous prime is 328950983. The next prime is 328951001. The reversal of 328950987 is 789059823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789059823 = 3 ⋅263019941.

It is a cyclic number.

It is not a de Polignac number, because 328950987 - 2² = 328950983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328950983) 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, 54825162 + ... + 54825167.

It is an arithmetic number, because the mean of its divisors is an integer number (109650330).

Almost surely, 2^328950987 is an apocalyptic number.

328950987 is a deficient number, since it is larger than the sum of its proper divisors (109650333).

328950987 is a wasteful number, since it uses less digits than its factorization.

328950987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109650332.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 328950987 is about 18137.0060098132. The cubic root of 328950987 is about 690.3093110178.

The spelling of 328950987 in words is "three hundred twenty-eight million, nine hundred fifty thousand, nine hundred eighty-seven".