68905369 has 16 divisors (see below), whose sum is σ = 79083648. Its totient is φ = 59473152.

The previous prime is 68905367. The next prime is 68905391. The reversal of 68905369 is 96350986.

It is a cyclic number.

It is not a de Polignac number, because 68905369 - 2¹ = 68905367 is a prime.

It is a super-2 number, since 2×68905369² = 9495899754052322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68905367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35974 + ... + 37840.

It is an arithmetic number, because the mean of its divisors is an integer number (4942728).

Almost surely, 2^68905369 is an apocalyptic number.

It is an amenable number.

68905369 is a deficient number, since it is larger than the sum of its proper divisors (10178279).

68905369 is a wasteful number, since it uses less digits than its factorization.

68905369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 68905369 is about 8300.9257917415. The cubic root of 68905369 is about 409.9690022173.

The spelling of 68905369 in words is "sixty-eight million, nine hundred five thousand, three hundred sixty-nine".