4999647 has 8 divisors (see below), whose sum is σ = 6678144. Its totient is φ = 3327128.

The previous prime is 4999639. The next prime is 4999651. The reversal of 4999647 is 7469994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4999647 - 2³ = 4999639 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4999596 and 4999605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999627) 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 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 3350.

It is an arithmetic number, because the mean of its divisors is an integer number (834768).

Almost surely, 2^4999647 is an apocalyptic number.

4999647 is a deficient number, since it is larger than the sum of its proper divisors (1678497).

4999647 is a wasteful number, since it uses less digits than its factorization.

4999647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989.

The product of its digits is 489888, while the sum is 48.

The square root of 4999647 is about 2235.9890429070. The cubic root of 4999647 is about 170.9935704296.

The spelling of 4999647 in words is "four million, nine hundred ninety-nine thousand, six hundred forty-seven".