68463091 has 4 divisors (see below), whose sum is σ = 68488672. Its totient is φ = 68437512.

The previous prime is 68463053. The next prime is 68463103. The reversal of 68463091 is 19036486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68463091 - 2⁷ = 68462963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68463091.

It is not an unprimeable number, because it can be changed into a prime (68463041) 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 3 ways as a sum of consecutive naturals, for example, 8235 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (17122168).

Almost surely, 2^68463091 is an apocalyptic number.

68463091 is a deficient number, since it is larger than the sum of its proper divisors (25581).

68463091 is a wasteful number, since it uses less digits than its factorization.

68463091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25580.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68463091 is about 8274.2426239505. The cubic root of 68463091 is about 409.0899724947.

The spelling of 68463091 in words is "sixty-eight million, four hundred sixty-three thousand, ninety-one".