4956721 has 8 divisors (see below), whose sum is σ = 6179904. Its totient is φ = 3862320.

The previous prime is 4956703. The next prime is 4956733. The reversal of 4956721 is 1276594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4956721 - 2¹³ = 4948529 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4956781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32110 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (772488).

Almost surely, 2^4956721 is an apocalyptic number.

It is an amenable number.

4956721 is a deficient number, since it is larger than the sum of its proper divisors (1223183).

4956721 is a wasteful number, since it uses less digits than its factorization.

4956721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64391.

The product of its digits is 15120, while the sum is 34.

The square root of 4956721 is about 2226.3694661938. The cubic root of 4956721 is about 170.5027906080.

The spelling of 4956721 in words is "four million, nine hundred fifty-six thousand, seven hundred twenty-one".