68945605 has 16 divisors (see below), whose sum is σ = 86557824. Its totient is φ = 52620480.

The previous prime is 68945603. The next prime is 68945621. The reversal of 68945605 is 50654986.

It is not a de Polignac number, because 68945605 - 2¹ = 68945603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68945603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75562 + ... + 76468.

It is an arithmetic number, because the mean of its divisors is an integer number (5409864).

Almost surely, 2^68945605 is an apocalyptic number.

It is an amenable number.

68945605 is a deficient number, since it is larger than the sum of its proper divisors (17612219).

68945605 is a wasteful number, since it uses less digits than its factorization.

68945605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 68945605 is about 8303.3490231352. The cubic root of 68945605 is about 410.0487845976.

The spelling of 68945605 in words is "sixty-eight million, nine hundred forty-five thousand, six hundred five".