68075390 has 16 divisors (see below), whose sum is σ = 124545600. Its totient is φ = 26783520.

The previous prime is 68075387. The next prime is 68075393. The reversal of 68075390 is 9357086.

It is an interprime number because it is at equal distance from previous prime (68075387) and next prime (68075393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68075393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55190 + ... + 56409.

It is an arithmetic number, because the mean of its divisors is an integer number (7784100).

Almost surely, 2^68075390 is an apocalyptic number.

68075390 is a deficient number, since it is larger than the sum of its proper divisors (56470210).

68075390 is a wasteful number, since it uses less digits than its factorization.

68075390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111667.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 68075390 is about 8250.7811751373. The cubic root of 68075390 is about 408.3162956471.

The spelling of 68075390 in words is "sixty-eight million, seventy-five thousand, three hundred ninety".