326998628 has 18 divisors (see below), whose sum is σ = 629000358. Its totient is φ = 148635520.

The previous prime is 326998619. The next prime is 326998643. The reversal of 326998628 is 826899623.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 291453184 + 35545444 = 17072^2 + 5962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 326998628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337325 + ... + 338292.

Almost surely, 2^326998628 is an apocalyptic number.

It is an amenable number.

326998628 is a deficient number, since it is larger than the sum of its proper divisors (302001730).

326998628 is a wasteful number, since it uses less digits than its factorization.

326998628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675643 (or 675630 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 326998628 is about 18083.1033840986. The cubic root of 326998628 is about 688.9409139150.

The spelling of 326998628 in words is "three hundred twenty-six million, nine hundred ninety-eight thousand, six hundred twenty-eight".