68489901 has 8 divisors (see below), whose sum is σ = 101466560. Its totient is φ = 45659916.

The previous prime is 68489899. The next prime is 68489917. The reversal of 68489901 is 10998486.

It is not a de Polignac number, because 68489901 - 2¹ = 68489899 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 (68489921) 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, 1268305 + ... + 1268358.

It is an arithmetic number, because the mean of its divisors is an integer number (12683320).

Almost surely, 2^68489901 is an apocalyptic number.

It is an amenable number.

68489901 is a deficient number, since it is larger than the sum of its proper divisors (32976659).

68489901 is a wasteful number, since it uses less digits than its factorization.

68489901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536672 (or 2536666 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 68489901 is about 8275.8625532327. The cubic root of 68489901 is about 409.1433651119.

The spelling of 68489901 in words is "sixty-eight million, four hundred eighty-nine thousand, nine hundred one".