68394469 has 12 divisors (see below), whose sum is σ = 80795232. Its totient is φ = 57392400.

The previous prime is 68394461. The next prime is 68394497. The reversal of 68394469 is 96449386.

It is not a de Polignac number, because 68394469 - 2³ = 68394461 is a prime.

It is a super-2 number, since 2×68394469² = 9355606779583922, 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 (68394461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16537 + ... + 20254.

It is an arithmetic number, because the mean of its divisors is an integer number (6732936).

Almost surely, 2^68394469 is an apocalyptic number.

It is an amenable number.

68394469 is a deficient number, since it is larger than the sum of its proper divisors (12400763).

68394469 is a wasteful number, since it uses less digits than its factorization.

68394469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36828 (or 36815 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 68394469 is about 8270.0948603991. The cubic root of 68394469 is about 408.9532469678.

The spelling of 68394469 in words is "sixty-eight million, three hundred ninety-four thousand, four hundred sixty-nine".