68447494 has 8 divisors (see below), whose sum is σ = 107135280. Its totient is φ = 32735736.

The previous prime is 68447459. The next prime is 68447507. The reversal of 68447494 is 49474486.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 1487989 = 68447494 / (6 + 8 + 4 + 4 + 7 + 4 + 9 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743949 + ... + 744040.

It is an arithmetic number, because the mean of its divisors is an integer number (13391910).

Almost surely, 2^68447494 is an apocalyptic number.

68447494 is a deficient number, since it is larger than the sum of its proper divisors (38687786).

68447494 is a wasteful number, since it uses less digits than its factorization.

68447494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488014.

The product of its digits is 774144, while the sum is 46.

The square root of 68447494 is about 8273.3000670833. The cubic root of 68447494 is about 409.0589043634.

The spelling of 68447494 in words is "sixty-eight million, four hundred forty-seven thousand, four hundred ninety-four".