167638 has 8 divisors (see below), whose sum is σ = 254880. Its totient is φ = 82680.

The previous prime is 167633. The next prime is 167641. The reversal of 167638 is 836761.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167633) by changing a digit.

167638 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 688.

It is an arithmetic number, because the mean of its divisors is an integer number (31860).

2¹⁶⁷⁶³⁸ is an apocalyptic number.

167638 is a deficient number, since it is larger than the sum of its proper divisors (87242).

167638 is a wasteful number, since it uses less digits than its factorization.

167638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its digits is 6048, while the sum is 31.

The square root of 167638 is about 409.4361977158. The cubic root of 167638 is about 55.1388228628.

The spelling of 167638 in words is "one hundred sixty-seven thousand, six hundred thirty-eight".