69681406 has 8 divisors (see below), whose sum is σ = 104960160. Its totient is φ = 34694688.

The previous prime is 69681383. The next prime is 69681413. The reversal of 69681406 is 60418696.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 72411 + ... + 73366.

It is an arithmetic number, because the mean of its divisors is an integer number (13120020).

Almost surely, 2^69681406 is an apocalyptic number.

69681406 is a deficient number, since it is larger than the sum of its proper divisors (35278754).

69681406 is a wasteful number, since it uses less digits than its factorization.

69681406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146018.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 69681406 is about 8347.5389187472. The cubic root of 69681406 is about 411.5023329249.

The spelling of 69681406 in words is "sixty-nine million, six hundred eighty-one thousand, four hundred six".