4435421 has 8 divisors (see below), whose sum is σ = 4572288. Its totient is φ = 4300000.

The previous prime is 4435397. The next prime is 4435423. The reversal of 4435421 is 1245344.

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 4435421 - 2⁶ = 4435357 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 (4435423) 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, 10076 + ... + 10506.

It is an arithmetic number, because the mean of its divisors is an integer number (571536).

Almost surely, 2^4435421 is an apocalyptic number.

4435421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4435421 is a deficient number, since it is larger than the sum of its proper divisors (136867).

4435421 is a wasteful number, since it uses less digits than its factorization.

4435421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its digits is 1920, while the sum is 23.

The square root of 4435421 is about 2106.0439216693. The cubic root of 4435421 is about 164.3027942635.

The spelling of 4435421 in words is "four million, four hundred thirty-five thousand, four hundred twenty-one".