69827868 has 36 divisors (see below), whose sum is σ = 192556728. Its totient is φ = 21159840.

The previous prime is 69827867. The next prime is 69827873. The reversal of 69827868 is 86872896.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×69827868² = 9751862298850848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69827867) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 87771 + ... + 88562.

It is an arithmetic number, because the mean of its divisors is an integer number (5348798).

Almost surely, 2^69827868 is an apocalyptic number.

It is an amenable number.

69827868 is an abundant number, since it is smaller than the sum of its proper divisors (122728860).

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

69827868 is a wasteful number, since it uses less digits than its factorization.

69827868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176354 (or 176349 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 69827868 is about 8356.3070790870. The cubic root of 69827868 is about 411.7904407621.

The spelling of 69827868 in words is "sixty-nine million, eight hundred twenty-seven thousand, eight hundred sixty-eight".