164428707 has 16 divisors (see below), whose sum is σ = 222107040. Its totient is φ = 108192000.

The previous prime is 164428699. The next prime is 164428721. The reversal of 164428707 is 707824461.

It is not a de Polignac number, because 164428707 - 2³ = 164428699 is a prime.

It is a super-3 number, since 3×164428707³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164428807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126919 + ... + 128207.

It is an arithmetic number, because the mean of its divisors is an integer number (13881690).

Almost surely, 2^164428707 is an apocalyptic number.

164428707 is a deficient number, since it is larger than the sum of its proper divisors (57678333).

164428707 is a wasteful number, since it uses less digits than its factorization.

164428707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 164428707 is about 12822.9757466822. The cubic root of 164428707 is about 547.8469067703.

The spelling of 164428707 in words is "one hundred sixty-four million, four hundred twenty-eight thousand, seven hundred seven".