68634224 has 10 divisors (see below), whose sum is σ = 132978840. Its totient is φ = 34317104.

The previous prime is 68634221. The next prime is 68634227. The reversal of 68634224 is 42243686.

It is an interprime number because it is at equal distance from previous prime (68634221) and next prime (68634227).

It is a super-3 number, since 3×68634224³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68634221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144804 + ... + 2144835.

It is an arithmetic number, because the mean of its divisors is an integer number (13297884).

Almost surely, 2^68634224 is an apocalyptic number.

It is an amenable number.

68634224 is a deficient number, since it is larger than the sum of its proper divisors (64344616).

68634224 is a wasteful number, since it uses less digits than its factorization.

68634224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289647 (or 4289641 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 68634224 is about 8284.5774786648. The cubic root of 68634224 is about 409.4305479389.

The spelling of 68634224 in words is "sixty-eight million, six hundred thirty-four thousand, two hundred twenty-four".