4720449 has 4 divisors (see below), whose sum is σ = 6293936. Its totient is φ = 3146964.

The previous prime is 4720433. The next prime is 4720477. The reversal of 4720449 is 9440274.

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 not a de Polignac number, because 4720449 - 2⁴ = 4720433 is a prime.

It is a D-number.

It is a Duffinian number.

4720449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4720049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786739 + ... + 786744.

It is an arithmetic number, because the mean of its divisors is an integer number (1573484).

Almost surely, 2^4720449 is an apocalyptic number.

It is an amenable number.

4720449 is a deficient number, since it is larger than the sum of its proper divisors (1573487).

4720449 is a wasteful number, since it uses less digits than its factorization.

4720449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573486.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 4720449 is about 2172.6594302835. The cubic root of 4720449 is about 167.7494493672.

The spelling of 4720449 in words is "four million, seven hundred twenty thousand, four hundred forty-nine".