328880537 has 8 divisors (see below), whose sum is σ = 332778600. Its totient is φ = 324993024.

The previous prime is 328880509. The next prime is 328880579. The reversal of 328880537 is 735088823.

It can be written as a sum of positive squares in 4 ways, for example, as 1125721 + 327754816 = 1061^2 + 18104^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328880537 - 2¹⁰ = 328879513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328883537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72389 + ... + 76797.

It is an arithmetic number, because the mean of its divisors is an integer number (41597325).

Almost surely, 2^328880537 is an apocalyptic number.

It is an amenable number.

328880537 is a deficient number, since it is larger than the sum of its proper divisors (3898063).

328880537 is an equidigital number, since it uses as much as digits as its factorization.

328880537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 328880537 is about 18135.0637440291. The cubic root of 328880537 is about 690.2600273199.

The spelling of 328880537 in words is "three hundred twenty-eight million, eight hundred eighty thousand, five hundred thirty-seven".