328997135 has 12 divisors (see below), whose sum is σ = 401093784. Its totient is φ = 259007760.

The previous prime is 328997087. The next prime is 328997147. The reversal of 328997135 is 531799823.

It is not a de Polignac number, because 328997135 - 2⁸ = 328996879 is a prime.

It is a super-2 number, since 2×328997135² = 216478229676416450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328997135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331490 + ... + 332480.

It is an arithmetic number, because the mean of its divisors is an integer number (33424482).

Almost surely, 2^328997135 is an apocalyptic number.

328997135 is a deficient number, since it is larger than the sum of its proper divisors (72096649).

328997135 is an frugal number, since it uses more digits than its factorization.

328997135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 1063 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 328997135 is about 18138.2781707636. The cubic root of 328997135 is about 690.3415902992.

The spelling of 328997135 in words is "three hundred twenty-eight million, nine hundred ninety-seven thousand, one hundred thirty-five".