68207031 has 6 divisors (see below), whose sum is σ = 98521280. Its totient is φ = 45471348.

The previous prime is 68206997. The next prime is 68207033. The reversal of 68207031 is 13070286.

It is not a de Polignac number, because 68207031 - 2⁹ = 68206519 is a prime.

It is a super-2 number, since 2×68207031² = 9304398155669922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68206986 and 68207004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68207033) 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 5 ways as a sum of consecutive naturals, for example, 3789271 + ... + 3789288.

Almost surely, 2^68207031 is an apocalyptic number.

68207031 is a deficient number, since it is larger than the sum of its proper divisors (30314249).

68207031 is a wasteful number, since it uses less digits than its factorization.

68207031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578565 (or 7578562 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 68207031 is about 8258.7548092918. The cubic root of 68207031 is about 408.5793204861.

The spelling of 68207031 in words is "sixty-eight million, two hundred seven thousand, thirty-one".