421353 has 6 divisors (see below), whose sum is σ = 608634. Its totient is φ = 280896.

The previous prime is 421349. The next prime is 421361. The reversal of 421353 is 353124.

It can be written as a sum of positive squares in only one way, i.e., 393129 + 28224 = 627^2 + 168^2 .

It is not a de Polignac number, because 421353 - 2² = 421349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421303) 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, 23400 + ... + 23417.

It is an arithmetic number, because the mean of its divisors is an integer number (101439).

2⁴²¹³⁵³ is an apocalyptic number.

It is an amenable number.

421353 is a deficient number, since it is larger than the sum of its proper divisors (187281).

421353 is a wasteful number, since it uses less digits than its factorization.

421353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46823 (or 46820 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 421353 is about 649.1170926728. The cubic root of 421353 is about 74.9690538996.

Adding to 421353 its reverse (353124), we get a palindrome (774477).

The spelling of 421353 in words is "four hundred twenty-one thousand, three hundred fifty-three".