68386549 has 16 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 53008560.

The previous prime is 68386547. The next prime is 68386573. The reversal of 68386549 is 94568386.

It is a happy number.

It is not a de Polignac number, because 68386549 - 2¹ = 68386547 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 (68386543) 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, 13092 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^68386549 is an apocalyptic number.

It is an amenable number.

68386549 is a deficient number, since it is larger than the sum of its proper divisors (17322251).

68386549 is a wasteful number, since it uses less digits than its factorization.

68386549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680.

The product of its digits is 1244160, while the sum is 49.

The square root of 68386549 is about 8269.6160128509. The cubic root of 68386549 is about 408.9374609216.

The spelling of 68386549 in words is "sixty-eight million, three hundred eighty-six thousand, five hundred forty-nine".