68084505 has 24 divisors (see below), whose sum is σ = 124225920. Its totient is φ = 34400160.

The previous prime is 68084459. The next prime is 68084519. The reversal of 68084505 is 50548086.

It is a happy number.

It is not a de Polignac number, because 68084505 - 2⁶ = 68084441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68084505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38961 + ... + 40670.

It is an arithmetic number, because the mean of its divisors is an integer number (5176080).

Almost surely, 2^68084505 is an apocalyptic number.

It is an amenable number.

68084505 is a deficient number, since it is larger than the sum of its proper divisors (56141415).

68084505 is a wasteful number, since it uses less digits than its factorization.

68084505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79661 (or 79658 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 68084505 is about 8251.3335285880. Note that the first 3 decimals coincide. The cubic root of 68084505 is about 408.3345187619.

The spelling of 68084505 in words is "sixty-eight million, eighty-four thousand, five hundred five".