328609951 has 4 divisors (see below), whose sum is σ = 339210304. Its totient is φ = 318009600.

The previous prime is 328609937. The next prime is 328609969. The reversal of 328609951 is 159906823.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328609951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328609898 and 328609907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328609051) 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, 5300130 + ... + 5300191.

It is an arithmetic number, because the mean of its divisors is an integer number (84802576).

Almost surely, 2^328609951 is an apocalyptic number.

328609951 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

328609951 is a deficient number, since it is larger than the sum of its proper divisors (10600353).

328609951 is a wasteful number, since it uses less digits than its factorization.

328609951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10600352.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 328609951 is about 18127.6019097949. The cubic root of 328609951 is about 690.0706718904.

The spelling of 328609951 in words is "three hundred twenty-eight million, six hundred nine thousand, nine hundred fifty-one".