68764406 has 8 divisors (see below), whose sum is σ = 104110920. Its totient is φ = 34060768.

The previous prime is 68764403. The next prime is 68764433. The reversal of 68764406 is 60446786.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68764403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160451 + ... + 160878.

It is an arithmetic number, because the mean of its divisors is an integer number (13013865).

Almost surely, 2^68764406 is an apocalyptic number.

68764406 is a deficient number, since it is larger than the sum of its proper divisors (35346514).

68764406 is a wasteful number, since it uses less digits than its factorization.

68764406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321438.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 68764406 is about 8292.4306448713. The cubic root of 68764406 is about 409.6892469801.

The spelling of 68764406 in words is "sixty-eight million, seven hundred sixty-four thousand, four hundred six".