68544895 has 4 divisors (see below), whose sum is σ = 82253880. Its totient is φ = 54835912.

The previous prime is 68544887. The next prime is 68544943. The reversal of 68544895 is 59844586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68544895 - 2³ = 68544887 is a prime.

It is a super-2 number, since 2×68544895² = 9396805261122050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6854485 + ... + 6854494.

It is an arithmetic number, because the mean of its divisors is an integer number (20563470).

Almost surely, 2^68544895 is an apocalyptic number.

68544895 is a deficient number, since it is larger than the sum of its proper divisors (13708985).

68544895 is a wasteful number, since it uses less digits than its factorization.

68544895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13708984.

The product of its digits is 1382400, while the sum is 49.

The square root of 68544895 is about 8279.1844405110. The cubic root of 68544895 is about 409.2528431047.

The spelling of 68544895 in words is "sixty-eight million, five hundred forty-four thousand, eight hundred ninety-five".