68097757 has 16 divisors (see below), whose sum is σ = 84333312. Its totient is φ = 53544960.

The previous prime is 68097719. The next prime is 68097769. The reversal of 68097757 is 75779086.

It is a de Polignac number, because none of the positive numbers 2^k-68097757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68097757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68097787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12957 + ... + 17437.

It is an arithmetic number, because the mean of its divisors is an integer number (5270832).

Almost surely, 2^68097757 is an apocalyptic number.

It is an amenable number.

68097757 is a deficient number, since it is larger than the sum of its proper divisors (16235555).

68097757 is a wasteful number, since it uses less digits than its factorization.

68097757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 68097757 is about 8252.1365112315. The cubic root of 68097757 is about 408.3610098507.

The spelling of 68097757 in words is "sixty-eight million, ninety-seven thousand, seven hundred fifty-seven".