68693505 has 8 divisors (see below), whose sum is σ = 109909632. Its totient is φ = 36636528.

The previous prime is 68693483. The next prime is 68693509. The reversal of 68693505 is 50539686.

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

It is not a de Polignac number, because 68693505 - 2⁵ = 68693473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68693509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2289769 + ... + 2289798.

It is an arithmetic number, because the mean of its divisors is an integer number (13738704).

Almost surely, 2^68693505 is an apocalyptic number.

It is an amenable number.

68693505 is a deficient number, since it is larger than the sum of its proper divisors (41216127).

68693505 is a wasteful number, since it uses less digits than its factorization.

68693505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579575.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 68693505 is about 8288.1544990426. The cubic root of 68693505 is about 409.5483922947.

The spelling of 68693505 in words is "sixty-eight million, six hundred ninety-three thousand, five hundred five".