4945999 has 4 divisors (see below), whose sum is σ = 4956336. Its totient is φ = 4935664.

The previous prime is 4945987. The next prime is 4946003. The reversal of 4945999 is 9995494.

4945999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9995494 = 2 ⋅4997747.

It is a cyclic number.

It is not a de Polignac number, because 4945999 - 2²¹ = 2848847 is a prime.

It is a super-2 number, since 2×4945999² = 48925812216002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4945939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4414 + ... + 5419.

It is an arithmetic number, because the mean of its divisors is an integer number (1239084).

Almost surely, 2^4945999 is an apocalyptic number.

4945999 is a deficient number, since it is larger than the sum of its proper divisors (10337).

4945999 is an equidigital number, since it uses as much as digits as its factorization.

4945999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336.

The product of its digits is 524880, while the sum is 49.

The square root of 4945999 is about 2223.9602064785. The cubic root of 4945999 is about 170.3797623221.

The spelling of 4945999 in words is "four million, nine hundred forty-five thousand, nine hundred ninety-nine".