68949478 has 16 divisors (see below), whose sum is σ = 111520080. Its totient is φ = 31782816.

The previous prime is 68949403. The next prime is 68949479. The reversal of 68949478 is 87494986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68949479) 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, 32968 + ... + 34996.

It is an arithmetic number, because the mean of its divisors is an integer number (6970005).

Almost surely, 2^68949478 is an apocalyptic number.

68949478 is a deficient number, since it is larger than the sum of its proper divisors (42570602).

68949478 is a wasteful number, since it uses less digits than its factorization.

68949478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351.

The product of its digits is 3483648, while the sum is 55.

The square root of 68949478 is about 8303.5822390099. The cubic root of 68949478 is about 410.0564625789.

The spelling of 68949478 in words is "sixty-eight million, nine hundred forty-nine thousand, four hundred seventy-eight".