4976721 has 10 divisors (see below), whose sum is σ = 7434482. Its totient is φ = 3317760.

The previous prime is 4976711. The next prime is 4976723. The reversal of 4976721 is 1276794.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4100625 + 876096 = 2025^2 + 936^2 .

It is not a de Polignac number, because 4976721 - 2⁷ = 4976593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4976723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30640 + ... + 30801.

Almost surely, 2^4976721 is an apocalyptic number.

It is an amenable number.

4976721 is a deficient number, since it is larger than the sum of its proper divisors (2457761).

4976721 is an equidigital number, since it uses as much as digits as its factorization.

4976721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61453 (or 61444 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 4976721 is about 2230.8565619510. The cubic root of 4976721 is about 170.7318048848.

The spelling of 4976721 in words is "four million, nine hundred seventy-six thousand, seven hundred twenty-one".