68650930 has 16 divisors (see below), whose sum is σ = 130840920. Its totient is φ = 25844992.

The previous prime is 68650927. The next prime is 68650961. The reversal of 68650930 is 3905686.

It can be written as a sum of positive squares in 4 ways, for example, as 63824121 + 4826809 = 7989^2 + 2197^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68650930.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 201745 + ... + 202084.

Almost surely, 2^68650930 is an apocalyptic number.

68650930 is a deficient number, since it is larger than the sum of its proper divisors (62189990).

68650930 is a wasteful number, since it uses less digits than its factorization.

68650930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403853.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 68650930 is about 8285.5856763418. The cubic root of 68650930 is about 409.4637645640.

The spelling of 68650930 in words is "sixty-eight million, six hundred fifty thousand, nine hundred thirty".