4093421 has 8 divisors (see below), whose sum is σ = 4229400. Its totient is φ = 3958848.

The previous prime is 4093409. The next prime is 4093433. The reversal of 4093421 is 1243904.

It is an interprime number because it is at equal distance from previous prime (4093409) and next prime (4093433).

It can be written as a sum of positive squares in 4 ways, for example, as 835396 + 3258025 = 914^2 + 1805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4093421 - 2¹⁴ = 4077037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4093451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11555 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (528675).

Almost surely, 2^4093421 is an apocalyptic number.

It is an amenable number.

4093421 is a deficient number, since it is larger than the sum of its proper divisors (135979).

4093421 is a wasteful number, since it uses less digits than its factorization.

4093421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4093421 is about 2023.2204526447. The cubic root of 4093421 is about 159.9664122205.

The spelling of 4093421 in words is "four million, ninety-three thousand, four hundred twenty-one".