4923638 has 4 divisors (see below), whose sum is σ = 7385460. Its totient is φ = 2461818.

The previous prime is 4923619. The next prime is 4923671. The reversal of 4923638 is 8363294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4923638² = 48484422310088, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4923598 and 4923607.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1230908 + ... + 1230911.

It is an arithmetic number, because the mean of its divisors is an integer number (1846365).

Almost surely, 2^4923638 is an apocalyptic number.

4923638 is a deficient number, since it is larger than the sum of its proper divisors (2461822).

4923638 is a wasteful number, since it uses less digits than its factorization.

4923638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461821.

The product of its digits is 31104, while the sum is 35.

The square root of 4923638 is about 2218.9272182746. The cubic root of 4923638 is about 170.1226105093.

The spelling of 4923638 in words is "four million, nine hundred twenty-three thousand, six hundred thirty-eight".