4669921 has 3 divisors (see below), whose sum is σ = 4672083. Its totient is φ = 4667760.

The previous prime is 4669913. The next prime is 4669949. The reversal of 4669921 is 1299664.

The square root of 4669921 is 2161.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2927521 + 1742400 = 1711^2 + 1320^2 .

It is not a de Polignac number, because 4669921 - 2³ = 4669913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4669961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1081 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (1557361).

Almost surely, 2^4669921 is an apocalyptic number.

4669921 is the 2161-st square number.

4669921 is the 1081-st centered octagonal number.

It is an amenable number.

4669921 is a deficient number, since it is larger than the sum of its proper divisors (2162).

4669921 is an frugal number, since it uses more digits than its factorization.

4669921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322 (or 2161 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The cubic root of 4669921 is about 167.1487672407.

The spelling of 4669921 in words is "four million, six hundred sixty-nine thousand, nine hundred twenty-one".