68453986 has 8 divisors (see below), whose sum is σ = 102792924. Its totient is φ = 34189680.

The previous prime is 68453971. The next prime is 68453993. The reversal of 68453986 is 68935486.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66928761 + 1525225 = 8181^2 + 1235^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16305 + ... + 20068.

Almost surely, 2^68453986 is an apocalyptic number.

68453986 is a deficient number, since it is larger than the sum of its proper divisors (34338938).

68453986 is a wasteful number, since it uses less digits than its factorization.

68453986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37316.

The product of its digits is 1244160, while the sum is 49.

The square root of 68453986 is about 8273.6924042413. The cubic root of 68453986 is about 409.0718365459.

The spelling of 68453986 in words is "sixty-eight million, four hundred fifty-three thousand, nine hundred eighty-six".