69968918 has 4 divisors (see below), whose sum is σ = 104953380. Its totient is φ = 34984458.

The previous prime is 69968911. The next prime is 69968933. The reversal of 69968918 is 81986996.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69968911) by changing a digit.

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 as a sum of consecutive naturals, namely, 17492228 + ... + 17492231.

It is an arithmetic number, because the mean of its divisors is an integer number (26238345).

Almost surely, 2^69968918 is an apocalyptic number.

69968918 is a deficient number, since it is larger than the sum of its proper divisors (34984462).

69968918 is a wasteful number, since it uses less digits than its factorization.

69968918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34984461.

The product of its digits is 1679616, while the sum is 56.

The square root of 69968918 is about 8364.7425543169. The cubic root of 69968918 is about 412.0675220027.

The spelling of 69968918 in words is "sixty-nine million, nine hundred sixty-eight thousand, nine hundred eighteen".