328637 has 2 divisors, whose sum is σ = 328638. Its totient is φ = 328636.

The previous prime is 328633. The next prime is 328639. The reversal of 328637 is 736823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320356 + 8281 = 566^2 + 91^2 .

It is an emirp because it is prime and its reverse (736823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328637 - 2² = 328633 is a prime.

Together with 328639, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3⁹ + 2¹⁷ + 6³ + 8³ + 3¹¹ + 7 .

It is equal to p₂₈₂₉₈ and since 328637 and 28298 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164318 + 164319.

It is an arithmetic number, because the mean of its divisors is an integer number (164319).

2³²⁸⁶³⁷ is an apocalyptic number.

It is an amenable number.

328637 is a deficient number, since it is larger than the sum of its proper divisors (1).

328637 is an equidigital number, since it uses as much as digits as its factorization.

328637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 328637 is about 573.2686979070. The cubic root of 328637 is about 69.0089605390.

The spelling of 328637 in words is "three hundred twenty-eight thousand, six hundred thirty-seven".