68047369 has 8 divisors (see below), whose sum is σ = 75809160. Its totient is φ = 60646656.

The previous prime is 68047367. The next prime is 68047393. The reversal of 68047369 is 96374086.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149769 + 67897600 = 387^2 + 8240^2 .

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

It is not a de Polignac number, because 68047369 - 2¹ = 68047367 is a prime.

It is a super-2 number, since 2×68047369² = 9260888855644322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68047367) 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, 89872 + ... + 90625.

It is an arithmetic number, because the mean of its divisors is an integer number (9476145).

Almost surely, 2^68047369 is an apocalyptic number.

It is an amenable number.

68047369 is a deficient number, since it is larger than the sum of its proper divisors (7761791).

68047369 is a wasteful number, since it uses less digits than its factorization.

68047369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180539.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 68047369 is about 8249.0829187250. The cubic root of 68047369 is about 408.2602646247.

The spelling of 68047369 in words is "sixty-eight million, forty-seven thousand, three hundred sixty-nine".