327477421 has 4 divisors (see below), whose sum is σ = 327534844. Its totient is φ = 327420000.

The previous prime is 327477389. The next prime is 327477497. The reversal of 327477421 is 124774723.

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

It can be written as a sum of positive squares in 2 ways, for example, as 179854921 + 147622500 = 13411^2 + 12150^2 .

It is a cyclic number.

It is not a de Polignac number, because 327477421 - 2⁵ = 327477389 is a prime.

It is a super-2 number, since 2×327477421² = 214482922529622482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327477721) 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, 19080 + ... + 31921.

It is an arithmetic number, because the mean of its divisors is an integer number (81883711).

Almost surely, 2^327477421 is an apocalyptic number.

It is an amenable number.

327477421 is a deficient number, since it is larger than the sum of its proper divisors (57423).

327477421 is an equidigital number, since it uses as much as digits as its factorization.

327477421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57422.

The product of its digits is 65856, while the sum is 37.

The square root of 327477421 is about 18096.3372260798. The cubic root of 327477421 is about 689.2770001606.

The spelling of 327477421 in words is "three hundred twenty-seven million, four hundred seventy-seven thousand, four hundred twenty-one".