68434223 has 16 divisors (see below), whose sum is σ = 83897856. Its totient is φ = 54927840.

The previous prime is 68434213. The next prime is 68434237. The reversal of 68434223 is 32243486.

It is not a de Polignac number, because 68434223 - 2²² = 64239919 is a prime.

It is a super-2 number, since 2×68434223² = 9366485755227458, which contains 22 as substring.

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 68434223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434213) 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, 7115 + ... + 13692.

It is an arithmetic number, because the mean of its divisors is an integer number (5243616).

Almost surely, 2^68434223 is an apocalyptic number.

68434223 is a deficient number, since it is larger than the sum of its proper divisors (15463633).

68434223 is a wasteful number, since it uses less digits than its factorization.

68434223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20854.

The product of its digits is 27648, while the sum is 32.

The square root of 68434223 is about 8272.4979903292. The cubic root of 68434223 is about 409.0324657446.

The spelling of 68434223 in words is "sixty-eight million, four hundred thirty-four thousand, two hundred twenty-three".