4770721 has 4 divisors (see below), whose sum is σ = 4881712. Its totient is φ = 4659732.

The previous prime is 4770713. The next prime is 4770737. The reversal of 4770721 is 1270774.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1270774 = 2 ⋅635387.

It is a cyclic number.

It is not a de Polignac number, because 4770721 - 2³ = 4770713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4770721.

It is not an unprimeable number, because it can be changed into a prime (4770221) 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, 55431 + ... + 55516.

It is an arithmetic number, because the mean of its divisors is an integer number (1220428).

Almost surely, 2^4770721 is an apocalyptic number.

It is an amenable number.

4770721 is a deficient number, since it is larger than the sum of its proper divisors (110991).

4770721 is a wasteful number, since it uses less digits than its factorization.

4770721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110990.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 4770721 is about 2184.1980221582. The cubic root of 4770721 is about 168.3428490738.

The spelling of 4770721 in words is "four million, seven hundred seventy thousand, seven hundred twenty-one".