164193967 has 8 divisors (see below), whose sum is σ = 187840512. Its totient is φ = 140595000.

The previous prime is 164193943. The next prime is 164193979. The reversal of 164193967 is 769391461.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-164193967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164193907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4159 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (23480064).

Almost surely, 2^164193967 is an apocalyptic number.

164193967 is a deficient number, since it is larger than the sum of its proper divisors (23646545).

164193967 is a wasteful number, since it uses less digits than its factorization.

164193967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23789.

The product of its digits is 244944, while the sum is 46.

The square root of 164193967 is about 12813.8193759706. The cubic root of 164193967 is about 547.5860787770.

The spelling of 164193967 in words is "one hundred sixty-four million, one hundred ninety-three thousand, nine hundred sixty-seven".