164964738 has 16 divisors (see below), whose sum is σ = 330469920. Its totient is φ = 54898176.

The previous prime is 164964721. The next prime is 164964739. The reversal of 164964738 is 837469461.

It is not an unprimeable number, because it can be changed into a prime (164964739) 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, 18495 + ... + 25922.

It is an arithmetic number, because the mean of its divisors is an integer number (20654370).

Almost surely, 2^164964738 is an apocalyptic number.

164964738 is an abundant number, since it is smaller than the sum of its proper divisors (165505182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164964738 is a wasteful number, since it uses less digits than its factorization.

164964738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45041.

The product of its digits is 870912, while the sum is 48.

The square root of 164964738 is about 12843.8599338361. The cubic root of 164964738 is about 548.4415806922.

The spelling of 164964738 in words is "one hundred sixty-four million, nine hundred sixty-four thousand, seven hundred thirty-eight".