68198367 has 4 divisors (see below), whose sum is σ = 90931160. Its totient is φ = 45465576.

The previous prime is 68198341. The next prime is 68198369. The reversal of 68198367 is 76389186.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68198367 - 2¹⁰ = 68197343 is a prime.

It is a super-2 number, since 2×68198367² = 9302034522933378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11366392 + ... + 11366397.

It is an arithmetic number, because the mean of its divisors is an integer number (22732790).

Almost surely, 2^68198367 is an apocalyptic number.

68198367 is a deficient number, since it is larger than the sum of its proper divisors (22732793).

68198367 is a wasteful number, since it uses less digits than its factorization.

68198367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22732792.

The product of its digits is 435456, while the sum is 48.

The square root of 68198367 is about 8258.2302583544. The cubic root of 68198367 is about 408.5620198204.

The spelling of 68198367 in words is "sixty-eight million, one hundred ninety-eight thousand, three hundred sixty-seven".