68753385 has 48 divisors (see below), whose sum is σ = 122316480. Its totient is φ = 35717760.

The previous prime is 68753383. The next prime is 68753387. The reversal of 68753385 is 58335786.

68753385 = 748² + 749² + ... + 854².

It is an interprime number because it is at equal distance from previous prime (68753383) and next prime (68753387).

It is not a de Polignac number, because 68753385 - 2¹ = 68753383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68753385.

It is not an unprimeable number, because it can be changed into a prime (68753383) 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 47 ways as a sum of consecutive naturals, for example, 524770 + ... + 524900.

It is an arithmetic number, because the mean of its divisors is an integer number (2548260).

Almost surely, 2^68753385 is an apocalyptic number.

It is an amenable number.

68753385 is a deficient number, since it is larger than the sum of its proper divisors (53563095).

68753385 is a wasteful number, since it uses less digits than its factorization.

68753385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 355 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 68753385 is about 8291.7660965563. The cubic root of 68753385 is about 409.6673585900.

The spelling of 68753385 in words is "sixty-eight million, seven hundred fifty-three thousand, three hundred eighty-five".