893421 has 12 divisors (see below), whose sum is σ = 1315548. Its totient is φ = 584064.

The previous prime is 893419. The next prime is 893429. The reversal of 893421 is 124398.

It can be written as a sum of positive squares in 2 ways, for example, as 275625 + 617796 = 525^2 + 786^2 .

It is not a de Polignac number, because 893421 - 2¹ = 893419 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 (893429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (109629).

2⁸⁹³⁴²¹ is an apocalyptic number.

It is an amenable number.

893421 is a deficient number, since it is larger than the sum of its proper divisors (422127).

893421 is a wasteful number, since it uses less digits than its factorization.

893421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1929 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 893421 is about 945.2095005870. The cubic root of 893421 is about 96.3131052968.

The spelling of 893421 in words is "eight hundred ninety-three thousand, four hundred twenty-one".