68458787 has 8 divisors (see below), whose sum is σ = 71642880. Its totient is φ = 65292040.

The previous prime is 68458783. The next prime is 68458801. The reversal of 68458787 is 78785486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68458787 - 2² = 68458783 is a prime.

It is a super-2 number, since 2×68458787² = 9373211035022738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68458781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (8955360).

Almost surely, 2^68458787 is an apocalyptic number.

68458787 is a deficient number, since it is larger than the sum of its proper divisors (3184093).

68458787 is a wasteful number, since it uses less digits than its factorization.

68458787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8673.

The product of its digits is 3010560, while the sum is 53.

The square root of 68458787 is about 8273.9825356354. The cubic root of 68458787 is about 409.0813996996.

The spelling of 68458787 in words is "sixty-eight million, four hundred fifty-eight thousand, seven hundred eighty-seven".