67998205 has 16 divisors (see below), whose sum is σ = 90699264. Its totient is φ = 48518080.

The previous prime is 67998197. The next prime is 67998209. The reversal of 67998205 is 50289976.

It is not a de Polignac number, because 67998205 - 2³ = 67998197 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 (67998209) 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, 8749 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (5668704).

Almost surely, 2^67998205 is an apocalyptic number.

It is an amenable number.

67998205 is a deficient number, since it is larger than the sum of its proper divisors (22701059).

67998205 is a wasteful number, since it uses less digits than its factorization.

67998205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23396.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 67998205 is about 8246.1024126553. The cubic root of 67998205 is about 408.1619187038.

The spelling of 67998205 in words is "sixty-seven million, nine hundred ninety-eight thousand, two hundred five".