4813639 has 2 divisors, whose sum is σ = 4813640. Its totient is φ = 4813638.

The previous prime is 4813621. The next prime is 4813643. The reversal of 4813639 is 9363184.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4813639 - 2⁵ = 4813607 is a prime.

It is a super-2 number, since 2×4813639² = 46342240844642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4813139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2406819 + 2406820.

It is an arithmetic number, because the mean of its divisors is an integer number (2406820).

Almost surely, 2^4813639 is an apocalyptic number.

4813639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4813639 is an equidigital number, since it uses as much as digits as its factorization.

4813639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 4813639 is about 2194.0006836827. Note that the first 3 decimals coincide. The cubic root of 4813639 is about 168.8461538887.

The spelling of 4813639 in words is "four million, eight hundred thirteen thousand, six hundred thirty-nine".