164863838 has 4 divisors (see below), whose sum is σ = 247295760. Its totient is φ = 82431918.

The previous prime is 164863789. The next prime is 164863843. The reversal of 164863838 is 838368461.

164863838 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.

It is a junction number, because it is equal to n+sod(n) for n = 164863792 and 164863801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41215958 + ... + 41215961.

It is an arithmetic number, because the mean of its divisors is an integer number (61823940).

Almost surely, 2^164863838 is an apocalyptic number.

164863838 is a deficient number, since it is larger than the sum of its proper divisors (82431922).

164863838 is an equidigital number, since it uses as much as digits as its factorization.

164863838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82431921.

The product of its digits is 663552, while the sum is 47.

The square root of 164863838 is about 12839.9313861095. The cubic root of 164863838 is about 548.3297405451.

The spelling of 164863838 in words is "one hundred sixty-four million, eight hundred sixty-three thousand, eight hundred thirty-eight".