68408806 has 4 divisors (see below), whose sum is σ = 102613212. Its totient is φ = 34204402.

The previous prime is 68408771. The next prime is 68408807. The reversal of 68408806 is 60880486.

It is a happy number.

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

It is a super-3 number, since 3×68408806³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68408807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17102200 + ... + 17102203.

It is an arithmetic number, because the mean of its divisors is an integer number (25653303).

Almost surely, 2^68408806 is an apocalyptic number.

68408806 is a deficient number, since it is larger than the sum of its proper divisors (34204406).

68408806 is a wasteful number, since it uses less digits than its factorization.

68408806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34204405.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 68408806 is about 8270.9616127751. The cubic root of 68408806 is about 408.9818201997.

The spelling of 68408806 in words is "sixty-eight million, four hundred eight thousand, eight hundred six".