67889653 has 16 divisors (see below), whose sum is σ = 77762160. Its totient is φ = 58715136.

The previous prime is 67889651. The next prime is 67889683. The reversal of 67889653 is 35698876.

It can be written as a sum of positive squares in 8 ways, for example, as 18861649 + 49028004 = 4343^2 + 7002^2 .

It is not a de Polignac number, because 67889653 - 2¹ = 67889651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67889653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67889651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60663 + ... + 61771.

It is an arithmetic number, because the mean of its divisors is an integer number (4860135).

Almost surely, 2^67889653 is an apocalyptic number.

It is an amenable number.

67889653 is a deficient number, since it is larger than the sum of its proper divisors (9872507).

67889653 is a wasteful number, since it uses less digits than its factorization.

67889653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its digits is 2177280, while the sum is 52.

The square root of 67889653 is about 8239.5177650151. The cubic root of 67889653 is about 407.9446071312.

The spelling of 67889653 in words is "sixty-seven million, eight hundred eighty-nine thousand, six hundred fifty-three".