4945923 has 6 divisors (see below), whose sum is σ = 7144124. Its totient is φ = 3297276.

The previous prime is 4945879. The next prime is 4945937. The reversal of 4945923 is 3295494.

It is not a de Polignac number, because 4945923 - 2⁶ = 4945859 is a prime.

It is an Ulam number.

It is a Duffinian number.

4945923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4945973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274765 + ... + 274782.

Almost surely, 2^4945923 is an apocalyptic number.

4945923 is a deficient number, since it is larger than the sum of its proper divisors (2198201).

4945923 is a wasteful number, since it uses less digits than its factorization.

4945923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549553 (or 549550 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 4945923 is about 2223.9431197762. The cubic root of 4945923 is about 170.3788896350.

The spelling of 4945923 in words is "four million, nine hundred forty-five thousand, nine hundred twenty-three".