4555691 has 4 divisors (see below), whose sum is σ = 5206512. Its totient is φ = 3904872.

The previous prime is 4555673. The next prime is 4555709. The reversal of 4555691 is 1965554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1965554 = 2 ⋅982777.

It is an interprime number because it is at equal distance from previous prime (4555673) and next prime (4555709).

It is a cyclic number.

It is not a de Polignac number, because 4555691 - 2¹⁸ = 4293547 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 (4555601) 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 3 ways as a sum of consecutive naturals, for example, 325400 + ... + 325413.

It is an arithmetic number, because the mean of its divisors is an integer number (1301628).

Almost surely, 2^4555691 is an apocalyptic number.

4555691 is a deficient number, since it is larger than the sum of its proper divisors (650821).

4555691 is an equidigital number, since it uses as much as digits as its factorization.

4555691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650820.

The product of its digits is 27000, while the sum is 35.

The square root of 4555691 is about 2134.4064748777. The cubic root of 4555691 is about 165.7746373307.

The spelling of 4555691 in words is "four million, five hundred fifty-five thousand, six hundred ninety-one".