4721001 has 4 divisors (see below), whose sum is σ = 6294672. Its totient is φ = 3147332.

The previous prime is 4720981. The next prime is 4721011. The reversal of 4721001 is 1001274.

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 4721001 - 2¹⁰ = 4719977 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4721011) 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, 786831 + ... + 786836.

It is an arithmetic number, because the mean of its divisors is an integer number (1573668).

Almost surely, 2^4721001 is an apocalyptic number.

It is an amenable number.

4721001 is a deficient number, since it is larger than the sum of its proper divisors (1573671).

4721001 is a wasteful number, since it uses less digits than its factorization.

4721001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573670.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 4721001 is about 2172.7864598253. The cubic root of 4721001 is about 167.7559878756.

Adding to 4721001 its reverse (1001274), we get a palindrome (5722275).

The spelling of 4721001 in words is "four million, seven hundred twenty-one thousand, one".