108172667 has 4 divisors (see below), whose sum is σ = 108213120. Its totient is φ = 108132216.

The previous prime is 108172663. The next prime is 108172699. The reversal of 108172667 is 766271801.

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

It is a cyclic number.

It is not a de Polignac number, because 108172667 - 2² = 108172663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108172667.

It is not an unprimeable number, because it can be changed into a prime (108172663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15908 + ... + 21665.

It is an arithmetic number, because the mean of its divisors is an integer number (27053280).

Almost surely, 2^108172667 is an apocalyptic number.

108172667 is a deficient number, since it is larger than the sum of its proper divisors (40453).

108172667 is an equidigital number, since it uses as much as digits as its factorization.

108172667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40452.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 108172667 is about 10400.6089725554. The cubic root of 108172667 is about 476.4739691435.

The spelling of 108172667 in words is "one hundred eight million, one hundred seventy-two thousand, six hundred sixty-seven".