68672351 has 4 divisors (see below), whose sum is σ = 74915304. Its totient is φ = 62429400.

The previous prime is 68672339. The next prime is 68672371. The reversal of 68672351 is 15327686.

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

It is not a de Polignac number, because 68672351 - 2⁶ = 68672287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68672321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121460 + ... + 3121481.

It is an arithmetic number, because the mean of its divisors is an integer number (18728826).

Almost surely, 2^68672351 is an apocalyptic number.

68672351 is a deficient number, since it is larger than the sum of its proper divisors (6242953).

68672351 is a wasteful number, since it uses less digits than its factorization.

68672351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242952.

The product of its digits is 60480, while the sum is 38.

The square root of 68672351 is about 8286.8782421368. The cubic root of 68672351 is about 409.5063481637.

It can be divided in two parts, 686 and 72351, that added together give a palindrome (73037).

The spelling of 68672351 in words is "sixty-eight million, six hundred seventy-two thousand, three hundred fifty-one".