164923470 has 96 divisors (see below), whose sum is σ = 442810368. Its totient is φ = 42565824.

The previous prime is 164923469. The next prime is 164923471. The reversal of 164923470 is 74329461.

164923470 is a `hidden beast` number, since 1 + 649 + 2 + 3 + 4 + 7 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (164923469) and next prime (164923471).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164923471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537057 + ... + 537363.

It is an arithmetic number, because the mean of its divisors is an integer number (4612608).

Almost surely, 2^164923470 is an apocalyptic number.

164923470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164923470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221405184).

164923470 is an abundant number, since it is smaller than the sum of its proper divisors (277886898).

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

164923470 is a wasteful number, since it uses less digits than its factorization.

164923470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 164923470 is about 12842.2533069551. The cubic root of 164923470 is about 548.3958436961.

The spelling of 164923470 in words is "one hundred sixty-four million, nine hundred twenty-three thousand, four hundred seventy".