68419399 has 8 divisors (see below), whose sum is σ = 72455040. Its totient is φ = 64427256.

The previous prime is 68419391. The next prime is 68419453. The reversal of 68419399 is 99391486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68419399 - 2³ = 68419391 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 (68419391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7609 + ... + 13954.

It is an arithmetic number, because the mean of its divisors is an integer number (9056880).

Almost surely, 2^68419399 is an apocalyptic number.

68419399 is a deficient number, since it is larger than the sum of its proper divisors (4035641).

68419399 is a wasteful number, since it uses less digits than its factorization.

68419399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21749.

The product of its digits is 419904, while the sum is 49.

The square root of 68419399 is about 8271.6019609263. The cubic root of 68419399 is about 409.0029291820.

The spelling of 68419399 in words is "sixty-eight million, four hundred nineteen thousand, three hundred ninety-nine".