4350921 has 4 divisors (see below), whose sum is σ = 5801232. Its totient is φ = 2900612.

The previous prime is 4350919. The next prime is 4350937. The reversal of 4350921 is 1290534.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4350921 - 2¹ = 4350919 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4350891 and 4350900.

It is not an unprimeable number, because it can be changed into a prime (4350901) 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, 725151 + ... + 725156.

It is an arithmetic number, because the mean of its divisors is an integer number (1450308).

Almost surely, 2^4350921 is an apocalyptic number.

It is an amenable number.

4350921 is a deficient number, since it is larger than the sum of its proper divisors (1450311).

4350921 is a wasteful number, since it uses less digits than its factorization.

4350921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450310.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 4350921 is about 2085.8861426262. The cubic root of 4350921 is about 163.2527099901.

The spelling of 4350921 in words is "four million, three hundred fifty thousand, nine hundred twenty-one".