4496721 has 16 divisors (see below), whose sum is σ = 6522624. Its totient is φ = 2744064.

The previous prime is 4496717. The next prime is 4496731. The reversal of 4496721 is 1276944.

It is a happy number.

It is not a de Polignac number, because 4496721 - 2² = 4496717 is a prime.

It is a Curzon number.

4496721 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4496731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696 + ... + 3078.

It is an arithmetic number, because the mean of its divisors is an integer number (407664).

Almost surely, 2^4496721 is an apocalyptic number.

It is an amenable number.

4496721 is a deficient number, since it is larger than the sum of its proper divisors (2025903).

4496721 is a wasteful number, since it uses less digits than its factorization.

4496721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its digits is 12096, while the sum is 33.

The square root of 4496721 is about 2120.5473350058. The cubic root of 4496721 is about 165.0562526289.

The spelling of 4496721 in words is "four million, four hundred ninety-six thousand, seven hundred twenty-one".