69991112 has 8 divisors (see below), whose sum is σ = 131233350. Its totient is φ = 34995552.

The previous prime is 69991069. The next prime is 69991121. The reversal of 69991112 is 21119996.

It can be written as a sum of positive squares in only one way, i.e., 69989956 + 1156 = 8366^2 + 34^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374437 + ... + 4374452.

Almost surely, 2^69991112 is an apocalyptic number.

It is an amenable number.

69991112 is a deficient number, since it is larger than the sum of its proper divisors (61242238).

69991112 is a wasteful number, since it uses less digits than its factorization.

69991112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748895 (or 8748891 counting only the distinct ones).

The product of its digits is 8748, while the sum is 38.

The square root of 69991112 is about 8366.0690888852. The cubic root of 69991112 is about 412.1110863932. Note that the first 3 decimals are identical.

The spelling of 69991112 in words is "sixty-nine million, nine hundred ninety-one thousand, one hundred twelve".