68949585 has 24 divisors (see below), whose sum is σ = 120617640. Its totient is φ = 36433152.

The previous prime is 68949563. The next prime is 68949589. The reversal of 68949585 is 58594986.

68949585 = 47² + 48² + ... + 591².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 986049 + 67963536 = 993^2 + 8244^2 .

It is not a de Polignac number, because 68949585 - 2⁶ = 68949521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68949589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2124 + ... + 11933.

It is an arithmetic number, because the mean of its divisors is an integer number (5025735).

Almost surely, 2^68949585 is an apocalyptic number.

It is an amenable number.

68949585 is a deficient number, since it is larger than the sum of its proper divisors (51668055).

68949585 is a wasteful number, since it uses less digits than its factorization.

68949585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14177 (or 14174 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 68949585 is about 8303.5886820097. The cubic root of 68949585 is about 410.0566746957.

The spelling of 68949585 in words is "sixty-eight million, nine hundred forty-nine thousand, five hundred eighty-five".