68349193 has 4 divisors (see below), whose sum is σ = 74562768. Its totient is φ = 62135620.

The previous prime is 68349187. The next prime is 68349209. The reversal of 68349193 is 39194386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68349193 - 2⁵ = 68349161 is a prime.

It is a super-2 number, since 2×68349193² = 9343224367502498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68349103) 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 3 ways as a sum of consecutive naturals, for example, 3106771 + ... + 3106792.

It is an arithmetic number, because the mean of its divisors is an integer number (18640692).

Almost surely, 2^68349193 is an apocalyptic number.

It is an amenable number.

68349193 is a deficient number, since it is larger than the sum of its proper divisors (6213575).

68349193 is a wasteful number, since it uses less digits than its factorization.

68349193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213574.

The product of its digits is 139968, while the sum is 43.

The square root of 68349193 is about 8267.3570746642. The cubic root of 68349193 is about 408.8629869673.

The spelling of 68349193 in words is "sixty-eight million, three hundred forty-nine thousand, one hundred ninety-three".