68967651 has 4 divisors (see below), whose sum is σ = 91956872. Its totient is φ = 45978432.

The previous prime is 68967649. The next prime is 68967673. The reversal of 68967651 is 15676986.

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

It is not a de Polignac number, because 68967651 - 2¹ = 68967649 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 68967651.

It is not an unprimeable number, because it can be changed into a prime (68967611) 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, 11494606 + ... + 11494611.

It is an arithmetic number, because the mean of its divisors is an integer number (22989218).

Almost surely, 2^68967651 is an apocalyptic number.

68967651 is a deficient number, since it is larger than the sum of its proper divisors (22989221).

68967651 is a wasteful number, since it uses less digits than its factorization.

68967651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22989220.

The product of its digits is 544320, while the sum is 48.

The square root of 68967651 is about 8304.6764536615. The cubic root of 68967651 is about 410.0924855806.

The spelling of 68967651 in words is "sixty-eight million, nine hundred sixty-seven thousand, six hundred fifty-one".