838470166 has 4 divisors (see below), whose sum is σ = 1257705252. Its totient is φ = 419235082.

The previous prime is 838470163. The next prime is 838470167. The reversal of 838470166 is 661074838.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838470163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209617540 + ... + 209617543.

It is an arithmetic number, because the mean of its divisors is an integer number (314426313).

Almost surely, 2^838470166 is an apocalyptic number.

838470166 is a deficient number, since it is larger than the sum of its proper divisors (419235086).

838470166 is a wasteful number, since it uses less digits than its factorization.

838470166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419235085.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 838470166 is about 28956.3493210038. The cubic root of 838470166 is about 942.9656472902.

The spelling of 838470166 in words is "eight hundred thirty-eight million, four hundred seventy thousand, one hundred sixty-six".