68697158 has 4 divisors (see below), whose sum is σ = 103045740. Its totient is φ = 34348578.

The previous prime is 68697151. The next prime is 68697173. The reversal of 68697158 is 85179686.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68697151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17174288 + ... + 17174291.

It is an arithmetic number, because the mean of its divisors is an integer number (25761435).

Almost surely, 2^68697158 is an apocalyptic number.

68697158 is a deficient number, since it is larger than the sum of its proper divisors (34348582).

68697158 is a wasteful number, since it uses less digits than its factorization.

68697158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34348581.

The product of its digits is 725760, while the sum is 50.

The square root of 68697158 is about 8288.3748708658. The cubic root of 68697158 is about 409.5556518541. Note that the first 3 decimals are identical.

The spelling of 68697158 in words is "sixty-eight million, six hundred ninety-seven thousand, one hundred fifty-eight".