371421 has 6 divisors (see below), whose sum is σ = 536510. Its totient is φ = 247608.

The previous prime is 371417. The next prime is 371447. The reversal of 371421 is 124173.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 168921 = 450^2 + 411^2 .

It is not a de Polignac number, because 371421 - 2² = 371417 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 371394 and 371403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20626 + ... + 20643.

371421 is a Friedman number, since it can be written as 13^(4+1)+2^7, using all its digits and the basic arithmetic operations.

2³⁷¹⁴²¹ is an apocalyptic number.

It is an amenable number.

371421 is a deficient number, since it is larger than the sum of its proper divisors (165089).

371421 is a wasteful number, since it uses less digits than its factorization.

371421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41275 (or 41272 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 371421 is about 609.4431884926. The cubic root of 371421 is about 71.8823309473.

Adding to 371421 its reverse (124173), we get a palindrome (495594).

The spelling of 371421 in words is "three hundred seventy-one thousand, four hundred twenty-one", and thus it is an iban number.