67712406 has 16 divisors (see below), whose sum is σ = 136740864. Its totient is φ = 22351464.

The previous prime is 67712347. The next prime is 67712417. The reversal of 67712406 is 60421776.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 54166 + ... + 55401.

It is an arithmetic number, because the mean of its divisors is an integer number (8546304).

Almost surely, 2^67712406 is an apocalyptic number.

67712406 is an abundant number, since it is smaller than the sum of its proper divisors (69028458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67712406 is a wasteful number, since it uses less digits than its factorization.

67712406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109675.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 67712406 is about 8228.7548268253. The cubic root of 67712406 is about 407.5892757339.

The spelling of 67712406 in words is "sixty-seven million, seven hundred twelve thousand, four hundred six".