68307802 has 16 divisors (see below), whose sum is σ = 108642600. Its totient is φ = 32099328.

The previous prime is 68307761. The next prime is 68307803. The reversal of 68307802 is 20870386.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68211081 + 96721 = 8259^2 + 311^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (68307803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43324 + ... + 44872.

Almost surely, 2^68307802 is an apocalyptic number.

68307802 is a deficient number, since it is larger than the sum of its proper divisors (40334798).

68307802 is a wasteful number, since it uses less digits than its factorization.

68307802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 68307802 is about 8264.8534167280. The cubic root of 68307802 is about 408.7804370281.

The spelling of 68307802 in words is "sixty-eight million, three hundred seven thousand, eight hundred two".