164417047 has 4 divisors (see below), whose sum is σ = 174088656. Its totient is φ = 154745440.

The previous prime is 164417039. The next prime is 164417053. The reversal of 164417047 is 740714461.

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 164417047 - 2³ = 164417039 is a prime.

It is a super-3 number, since 3×164417047³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164417347) 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, 4835779 + ... + 4835812.

It is an arithmetic number, because the mean of its divisors is an integer number (43522164).

Almost surely, 2^164417047 is an apocalyptic number.

164417047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164417047 is a deficient number, since it is larger than the sum of its proper divisors (9671609).

164417047 is an equidigital number, since it uses as much as digits as its factorization.

164417047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671608.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 164417047 is about 12822.5210859643. The cubic root of 164417047 is about 547.8339567893.

The spelling of 164417047 in words is "one hundred sixty-four million, four hundred seventeen thousand, forty-seven".