326368961 has 4 divisors (see below), whose sum is σ = 336897024. Its totient is φ = 315840900.

The previous prime is 326368957. The next prime is 326368967. The reversal of 326368961 is 169863623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 326368961 - 2² = 326368957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326368967) 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, 5263985 + ... + 5264046.

It is an arithmetic number, because the mean of its divisors is an integer number (84224256).

Almost surely, 2^326368961 is an apocalyptic number.

326368961 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

326368961 is a deficient number, since it is larger than the sum of its proper divisors (10528063).

326368961 is a wasteful number, since it uses less digits than its factorization.

326368961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528062.

The product of its digits is 279936, while the sum is 44.

The square root of 326368961 is about 18065.6846258314. The cubic root of 326368961 is about 688.4984226600.

The spelling of 326368961 in words is "three hundred twenty-six million, three hundred sixty-eight thousand, nine hundred sixty-one".