164793870 has 48 divisors (see below), whose sum is σ = 434874960. Its totient is φ = 43287552.

The previous prime is 164793857. The next prime is 164793887. The reversal of 164793870 is 78397461.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7635 + ... + 19694.

It is an arithmetic number, because the mean of its divisors is an integer number (9059895).

Almost surely, 2^164793870 is an apocalyptic number.

164793870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164793870 is an abundant number, since it is smaller than the sum of its proper divisors (270081090).

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

164793870 is a wasteful number, since it uses less digits than its factorization.

164793870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27409 (or 27406 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 164793870 is about 12837.2064718147. The cubic root of 164793870 is about 548.2521594243.

The spelling of 164793870 in words is "one hundred sixty-four million, seven hundred ninety-three thousand, eight hundred seventy".