68404069 has 8 divisors (see below), whose sum is σ = 71964000. Its totient is φ = 64924272.

The previous prime is 68404067. The next prime is 68404117. The reversal of 68404069 is 96040486.

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

It is not a de Polignac number, because 68404069 - 2¹ = 68404067 is a prime.

It is a super-2 number, since 2×68404069² = 9358233311513522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68404067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18279 + ... + 21700.

It is an arithmetic number, because the mean of its divisors is an integer number (8995500).

Almost surely, 2^68404069 is an apocalyptic number.

It is an amenable number.

68404069 is a deficient number, since it is larger than the sum of its proper divisors (3559931).

68404069 is a wasteful number, since it uses less digits than its factorization.

68404069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40067.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 68404069 is about 8270.6752445009. The cubic root of 68404069 is about 408.9723799355.

The spelling of 68404069 in words is "sixty-eight million, four hundred four thousand, sixty-nine".