364421 has 4 divisors (see below), whose sum is σ = 365772. Its totient is φ = 363072.

The previous prime is 364417. The next prime is 364423. The reversal of 364421 is 124463.

It is a happy number.

364421 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124463 = 71 ⋅1753.

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 83521 = 530^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 364421 - 2² = 364417 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 364393 and 364402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364423) 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, 116 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (91443).

2³⁶⁴⁴²¹ is an apocalyptic number.

It is an amenable number.

364421 is a deficient number, since it is larger than the sum of its proper divisors (1351).

364421 is an equidigital number, since it uses as much as digits as its factorization.

364421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350.

The product of its digits is 576, while the sum is 20.

The square root of 364421 is about 603.6729246869. The cubic root of 364421 is about 71.4278862791.

Adding to 364421 its reverse (124463), we get a palindrome (488884).

The spelling of 364421 in words is "three hundred sixty-four thousand, four hundred twenty-one".