68408755 has 8 divisors (see below), whose sum is σ = 83436624. Its totient is φ = 53829600.

The previous prime is 68408749. The next prime is 68408771. The reversal of 68408755 is 55780486.

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

It is not a de Polignac number, because 68408755 - 2⁹ = 68408243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111841 + ... + 112450.

It is an arithmetic number, because the mean of its divisors is an integer number (10429578).

Almost surely, 2^68408755 is an apocalyptic number.

68408755 is a deficient number, since it is larger than the sum of its proper divisors (15027869).

68408755 is a wasteful number, since it uses less digits than its factorization.

68408755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224357.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 68408755 is about 8270.9585296990. The cubic root of 68408755 is about 408.9817185652.

The spelling of 68408755 in words is "sixty-eight million, four hundred eight thousand, seven hundred fifty-five".