68489470 has 32 divisors (see below), whose sum is σ = 141926400. Its totient is φ = 23309856.

The previous prime is 68489467. The next prime is 68489567. The reversal of 68489470 is 7498486.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 68489470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6211 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^68489470 is an apocalyptic number.

68489470 is an abundant number, since it is smaller than the sum of its proper divisors (73436930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68489470 is a wasteful number, since it uses less digits than its factorization.

68489470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 68489470 is about 8275.8365136100. The cubic root of 68489470 is about 409.1425068775.

The spelling of 68489470 in words is "sixty-eight million, four hundred eighty-nine thousand, four hundred seventy".