4011421 has 4 divisors (see below), whose sum is σ = 4077244. Its totient is φ = 3945600.

The previous prime is 4011409. The next prime is 4011443. The reversal of 4011421 is 1241104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2134521 + 1876900 = 1461^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011421 - 2¹¹ = 4009373 is a prime.

It is an Ulam number.

It is a Duffinian number.

4011421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32820 + ... + 32941.

It is an arithmetic number, because the mean of its divisors is an integer number (1019311).

Almost surely, 2^4011421 is an apocalyptic number.

It is an amenable number.

4011421 is a deficient number, since it is larger than the sum of its proper divisors (65823).

4011421 is an equidigital number, since it uses as much as digits as its factorization.

4011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65822.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 4011421 is about 2002.8532147913. The cubic root of 4011421 is about 158.8910425284.

Adding to 4011421 its reverse (1241104), we get a palindrome (5252525).

The spelling of 4011421 in words is "four million, eleven thousand, four hundred twenty-one".