68617792 has 28 divisors (see below), whose sum is σ = 137050780. Its totient is φ = 34085376.

The previous prime is 68617753. The next prime is 68617793. The reversal of 68617792 is 29771686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28472896 + 40144896 = 5336^2 + 6336^2 .

It is not an unprimeable number, because it can be changed into a prime (68617793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6634 + ... + 13462.

Almost surely, 2^68617792 is an apocalyptic number.

It is an amenable number.

68617792 is a deficient number, since it is larger than the sum of its proper divisors (68432988).

68617792 is a wasteful number, since it uses less digits than its factorization.

68617792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998 (or 6988 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 68617792 is about 8283.5856970276. The cubic root of 68617792 is about 409.3978708509.

The spelling of 68617792 in words is "sixty-eight million, six hundred seventeen thousand, seven hundred ninety-two".