4995623 has 4 divisors (see below), whose sum is σ = 5212848. Its totient is φ = 4778400.

The previous prime is 4995607. The next prime is 4995643. The reversal of 4995623 is 3265994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3265994 = 2 ⋅1632997.

It is a cyclic number.

It is not a de Polignac number, because 4995623 - 2⁴ = 4995607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4995643) 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, 108578 + ... + 108623.

It is an arithmetic number, because the mean of its divisors is an integer number (1303212).

Almost surely, 2^4995623 is an apocalyptic number.

4995623 is a deficient number, since it is larger than the sum of its proper divisors (217225).

4995623 is a wasteful number, since it uses less digits than its factorization.

4995623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217224.

The product of its digits is 58320, while the sum is 38.

The square root of 4995623 is about 2235.0890362578. The cubic root of 4995623 is about 170.9476830025.

The spelling of 4995623 in words is "four million, nine hundred ninety-five thousand, six hundred twenty-three".