4297921 has 4 divisors (see below), whose sum is σ = 4313392. Its totient is φ = 4282452.

The previous prime is 4297901. The next prime is 4297927. The reversal of 4297921 is 1297924.

It is a happy number.

4297921 is nontrivially palindromic in base 2.

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 4297921 - 2⁷ = 4297793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4297927) 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, 7311 + ... + 7876.

It is an arithmetic number, because the mean of its divisors is an integer number (1078348).

Almost surely, 2^4297921 is an apocalyptic number.

It is an amenable number.

4297921 is a deficient number, since it is larger than the sum of its proper divisors (15471).

4297921 is a wasteful number, since it uses less digits than its factorization.

4297921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15470.

The product of its digits is 9072, while the sum is 34.

The square root of 4297921 is about 2073.1427833123. The cubic root of 4297921 is about 162.5871217246.

The spelling of 4297921 in words is "four million, two hundred ninety-seven thousand, nine hundred twenty-one".