68910486 has 16 divisors (see below), whose sum is σ = 145928304. Its totient is φ = 21618944.

The previous prime is 68910431. The next prime is 68910487. The reversal of 68910486 is 68401986.

68910486 = 1366² + 1367² + ... + 1401².

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910487) 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, 337695 + ... + 337898.

It is an arithmetic number, because the mean of its divisors is an integer number (9120519).

Almost surely, 2^68910486 is an apocalyptic number.

68910486 is an abundant number, since it is smaller than the sum of its proper divisors (77017818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68910486 is a wasteful number, since it uses less digits than its factorization.

68910486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675615.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 68910486 is about 8301.2340046526. The cubic root of 68910486 is about 409.9791502386.

It can be divided in two parts, 68910 and 486, that added together give a palindrome (69396).

The spelling of 68910486 in words is "sixty-eight million, nine hundred ten thousand, four hundred eighty-six".