68764385 has 8 divisors (see below), whose sum is σ = 83870376. Its totient is φ = 54109440.

The previous prime is 68764379. The next prime is 68764387. The reversal of 68764385 is 58346786.

It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 68690944 = 271^2 + 8288^2 .

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

It is not a de Polignac number, because 68764385 - 2⁴ = 68764369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68764387) 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, 112424 + ... + 113033.

It is an arithmetic number, because the mean of its divisors is an integer number (10483797).

Almost surely, 2^68764385 is an apocalyptic number.

It is an amenable number.

68764385 is a deficient number, since it is larger than the sum of its proper divisors (15105991).

68764385 is a wasteful number, since it uses less digits than its factorization.

68764385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225523.

The product of its digits is 967680, while the sum is 47.

The square root of 68764385 is about 8292.4293786562. The cubic root of 68764385 is about 409.6892052750.

The spelling of 68764385 in words is "sixty-eight million, seven hundred sixty-four thousand, three hundred eighty-five".