4505691 has 4 divisors (see below), whose sum is σ = 6007592. Its totient is φ = 3003792.

The previous prime is 4505687. The next prime is 4505693. The reversal of 4505691 is 1965054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4505691 - 2² = 4505687 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4505693) 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, 750946 + ... + 750951.

It is an arithmetic number, because the mean of its divisors is an integer number (1501898).

Almost surely, 2^4505691 is an apocalyptic number.

4505691 is a deficient number, since it is larger than the sum of its proper divisors (1501901).

4505691 is a wasteful number, since it uses less digits than its factorization.

4505691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501900.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 4505691 is about 2122.6613012914. The cubic root of 4505691 is about 165.1659304150.

The spelling of 4505691 in words is "four million, five hundred five thousand, six hundred ninety-one".