326630531 has 4 divisors (see below), whose sum is σ = 328288752. Its totient is φ = 324972312.

The previous prime is 326630489. The next prime is 326630533. The reversal of 326630531 is 135036623.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 326630531 - 2¹⁰ = 326629507 is a prime.

It is a super-2 number, since 2×326630531² = 213375007562683922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326630494 and 326630503.

It is not an unprimeable number, because it can be changed into a prime (326630533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828815 + ... + 829208.

It is an arithmetic number, because the mean of its divisors is an integer number (82072188).

Almost surely, 2^326630531 is an apocalyptic number.

326630531 is a deficient number, since it is larger than the sum of its proper divisors (1658221).

326630531 is a wasteful number, since it uses less digits than its factorization.

326630531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658220.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 326630531 is about 18072.9225915456. The cubic root of 326630531 is about 688.6823070198.

The spelling of 326630531 in words is "three hundred twenty-six million, six hundred thirty thousand, five hundred thirty-one".