68806349 has 8 divisors (see below), whose sum is σ = 70559640. Its totient is φ = 67070016.

The previous prime is 68806343. The next prime is 68806373. The reversal of 68806349 is 94360886.

It can be written as a sum of positive squares in 4 ways, for example, as 25180324 + 43626025 = 5018^2 + 6605^2 .

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

It is not a de Polignac number, because 68806349 - 2⁸ = 68806093 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 (68806343) 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, 4187 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (8819955).

Almost surely, 2^68806349 is an apocalyptic number.

It is an amenable number.

68806349 is a deficient number, since it is larger than the sum of its proper divisors (1753291).

68806349 is a wasteful number, since it uses less digits than its factorization.

68806349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 68806349 is about 8294.9592524617. The cubic root of 68806349 is about 409.7725270012.

The spelling of 68806349 in words is "sixty-eight million, eight hundred six thousand, three hundred forty-nine".