68672775 has 24 divisors (see below), whose sum is σ = 120219984. Its totient is φ = 34470400.

The previous prime is 68672771. The next prime is 68672803. The reversal of 68672775 is 57727686.

It is not a de Polignac number, because 68672775 - 2² = 68672771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68672771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25656 + ... + 28205.

It is an arithmetic number, because the mean of its divisors is an integer number (5009166).

Almost surely, 2^68672775 is an apocalyptic number.

68672775 is a deficient number, since it is larger than the sum of its proper divisors (51547209).

68672775 is a wasteful number, since it uses less digits than its factorization.

68672775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53891 (or 53886 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The square root of 68672775 is about 8286.9038247104. The cubic root of 68672775 is about 409.5071909597.

The spelling of 68672775 in words is "sixty-eight million, six hundred seventy-two thousand, seven hundred seventy-five".