326481861 has 8 divisors (see below), whose sum is σ = 435806784. Its totient is φ = 217405760.

The previous prime is 326481851. The next prime is 326481871. The reversal of 326481861 is 168184623.

It is an interprime number because it is at equal distance from previous prime (326481851) and next prime (326481871).

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

It is a cyclic number.

It is not a de Polignac number, because 326481861 - 2⁵ = 326481829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326481851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59121 + ... + 64406.

It is an arithmetic number, because the mean of its divisors is an integer number (54475848).

Almost surely, 2^326481861 is an apocalyptic number.

It is an amenable number.

326481861 is a deficient number, since it is larger than the sum of its proper divisors (109324923).

326481861 is a wasteful number, since it uses less digits than its factorization.

326481861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124411.

The product of its digits is 55296, while the sum is 39.

The square root of 326481861 is about 18068.8090642411. The cubic root of 326481861 is about 688.5778036875.

The spelling of 326481861 in words is "three hundred twenty-six million, four hundred eighty-one thousand, eight hundred sixty-one".