68957667 has 6 divisors (see below), whose sum is σ = 99605532. Its totient is φ = 45971772.

The previous prime is 68957663. The next prime is 68957689. The reversal of 68957667 is 76675986.

It is a happy number.

68957667 is a `hidden beast` number, since 6 + 8 + 9 + 576 + 67 = 666.

It is not a de Polignac number, because 68957667 - 2² = 68957663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68957663) 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 5 ways as a sum of consecutive naturals, for example, 3830973 + ... + 3830990.

It is an arithmetic number, because the mean of its divisors is an integer number (16600922).

Almost surely, 2^68957667 is an apocalyptic number.

68957667 is a deficient number, since it is larger than the sum of its proper divisors (30647865).

68957667 is a wasteful number, since it uses less digits than its factorization.

68957667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661969 (or 7661966 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 68957667 is about 8304.0753248029. The cubic root of 68957667 is about 410.0726958149.

The spelling of 68957667 in words is "sixty-eight million, nine hundred fifty-seven thousand, six hundred sixty-seven".