68491703 has 4 divisors (see below), whose sum is σ = 78276240. Its totient is φ = 58707168.

The previous prime is 68491681. The next prime is 68491711. The reversal of 68491703 is 30719486.

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

It is a cyclic number.

It is not a de Polignac number, because 68491703 - 2⁶ = 68491639 is a prime.

It is a super-2 number, since 2×68491703² = 9382226759680418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68493703) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4892258 + ... + 4892271.

It is an arithmetic number, because the mean of its divisors is an integer number (19569060).

Almost surely, 2^68491703 is an apocalyptic number.

68491703 is a deficient number, since it is larger than the sum of its proper divisors (9784537).

68491703 is an equidigital number, since it uses as much as digits as its factorization.

68491703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784536.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 68491703 is about 8275.9714233436. The cubic root of 68491703 is about 409.1469533289.

The spelling of 68491703 in words is "sixty-eight million, four hundred ninety-one thousand, seven hundred three".