893351421 has 24 divisors (see below), whose sum is σ = 1330332120. Its totient is φ = 577259136.

The previous prime is 893351387. The next prime is 893351449. The reversal of 893351421 is 124153398.

It can be written as a sum of positive squares in 4 ways, for example, as 18020025 + 875331396 = 4245^2 + 29586^2 .

It is a de Polignac number, because none of the positive numbers 2^k-893351421 is a prime.

It is a super-2 number, since 2×893351421² = 1596153522805438482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (893351621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84591 + ... + 94563.

It is an arithmetic number, because the mean of its divisors is an integer number (55430505).

Almost surely, 2^893351421 is an apocalyptic number.

It is an amenable number.

893351421 is a deficient number, since it is larger than the sum of its proper divisors (436980699).

893351421 is a wasteful number, since it uses less digits than its factorization.

893351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10285 (or 10282 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 893351421 is about 29888.9849442901. The cubic root of 893351421 is about 963.1060496622.

The spelling of 893351421 in words is "eight hundred ninety-three million, three hundred fifty-one thousand, four hundred twenty-one".