67824870 has 64 divisors (see below), whose sum is σ = 172385280. Its totient is φ = 17031168.

The previous prime is 67824859. The next prime is 67824899. The reversal of 67824870 is 7842876.

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 31 ways as a sum of consecutive naturals, for example, 146259 + ... + 146721.

It is an arithmetic number, because the mean of its divisors is an integer number (2693520).

Almost surely, 2^67824870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67824870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86192640).

67824870 is an abundant number, since it is smaller than the sum of its proper divisors (104560410).

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

67824870 is a wasteful number, since it uses less digits than its factorization.

67824870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 67824870 is about 8235.5855893798. The cubic root of 67824870 is about 407.8148068600.

The spelling of 67824870 in words is "sixty-seven million, eight hundred twenty-four thousand, eight hundred seventy".