164622407 has 4 divisors (see below), whose sum is σ = 174306096. Its totient is φ = 154938720.

The previous prime is 164622401. The next prime is 164622413. The reversal of 164622407 is 704226461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704226461 = 79 ⋅8914259.

It is an interprime number because it is at equal distance from previous prime (164622401) and next prime (164622413).

It is a cyclic number.

It is not a de Polignac number, because 164622407 - 2²⁶ = 97513543 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 (164622401) 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, 4841819 + ... + 4841852.

It is an arithmetic number, because the mean of its divisors is an integer number (43576524).

Almost surely, 2^164622407 is an apocalyptic number.

164622407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164622407 is a deficient number, since it is larger than the sum of its proper divisors (9683689).

164622407 is an equidigital number, since it uses as much as digits as its factorization.

164622407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9683688.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 164622407 is about 12830.5263726786. The cubic root of 164622407 is about 548.0619468839.

Adding to 164622407 its reverse (704226461), we get a palindrome (868848868).

The spelling of 164622407 in words is "one hundred sixty-four million, six hundred twenty-two thousand, four hundred seven".