69984816 has 40 divisors (see below), whose sum is σ = 197231424. Its totient is φ = 21207360.

The previous prime is 69984799. The next prime is 69984829. The reversal of 69984816 is 61848996.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65746 + ... + 66801.

Almost surely, 2^69984816 is an apocalyptic number.

69984816 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

69984816 is an abundant number, since it is smaller than the sum of its proper divisors (127246608).

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

69984816 is a wasteful number, since it uses less digits than its factorization.

69984816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132569 (or 132563 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 69984816 is about 8365.6927985673. The cubic root of 69984816 is about 412.0987289708.

The spelling of 69984816 in words is "sixty-nine million, nine hundred eighty-four thousand, eight hundred sixteen".