68677909 has 8 divisors (see below), whose sum is σ = 72817920. Its totient is φ = 64549056.

The previous prime is 68677907. The next prime is 68677919. The reversal of 68677909 is 90977686.

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

It is a cyclic number.

It is not a de Polignac number, because 68677909 - 2¹ = 68677907 is a prime.

It is a super-2 number, since 2×68677909² = 9433310369224562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68677901) 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 7 ways as a sum of consecutive naturals, for example, 12252 + ... + 16954.

It is an arithmetic number, because the mean of its divisors is an integer number (9102240).

Almost surely, 2^68677909 is an apocalyptic number.

It is an amenable number.

68677909 is a deficient number, since it is larger than the sum of its proper divisors (4140011).

68677909 is a wasteful number, since it uses less digits than its factorization.

68677909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 68677909 is about 8287.2135847943. The cubic root of 68677909 is about 409.5173956710.

The spelling of 68677909 in words is "sixty-eight million, six hundred seventy-seven thousand, nine hundred nine".