326984638 has 8 divisors (see below), whose sum is σ = 490554288. Its totient is φ = 163466544.

The previous prime is 326984633. The next prime is 326984711. The reversal of 326984638 is 836489623.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 326984591 and 326984600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326984633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15295 + ... + 29797.

It is an arithmetic number, because the mean of its divisors is an integer number (61319286).

Almost surely, 2^326984638 is an apocalyptic number.

326984638 is a deficient number, since it is larger than the sum of its proper divisors (163569650).

326984638 is a wasteful number, since it uses less digits than its factorization.

326984638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25778.

The product of its digits is 1492992, while the sum is 49.

The square root of 326984638 is about 18082.7165547658. The cubic root of 326984638 is about 688.9310887761.

The spelling of 326984638 in words is "three hundred twenty-six million, nine hundred eighty-four thousand, six hundred thirty-eight".