68803957 has 4 divisors (see below), whose sum is σ = 68893740. Its totient is φ = 68714176.

The previous prime is 68803949. The next prime is 68803963. The reversal of 68803957 is 75930886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19439281 + 49364676 = 4409^2 + 7026^2 .

It is a cyclic number.

It is not a de Polignac number, because 68803957 - 2³ = 68803949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68803907) 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, 43732 + ... + 45277.

It is an arithmetic number, because the mean of its divisors is an integer number (17223435).

Almost surely, 2^68803957 is an apocalyptic number.

It is an amenable number.

68803957 is a deficient number, since it is larger than the sum of its proper divisors (89783).

68803957 is an equidigital number, since it uses as much as digits as its factorization.

68803957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89782.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 68803957 is about 8294.8150672574. The cubic root of 68803957 is about 409.7677784702.

The spelling of 68803957 in words is "sixty-eight million, eight hundred three thousand, nine hundred fifty-seven".