68947480 has 32 divisors (see below), whose sum is σ = 177294240. Its totient is φ = 23639040.

The previous prime is 68947469. The next prime is 68947481. The reversal of 68947480 is 8474986.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68947480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68947481) 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, 122841 + ... + 123400.

It is an arithmetic number, because the mean of its divisors is an integer number (5540445).

Almost surely, 2^68947480 is an apocalyptic number.

It is an amenable number.

68947480 is an abundant number, since it is smaller than the sum of its proper divisors (108346760).

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

68947480 is a wasteful number, since it uses less digits than its factorization.

68947480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246259 (or 246255 counting only the distinct ones).

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

The square root of 68947480 is about 8303.4619286175. The cubic root of 68947480 is about 410.0525017042.

The spelling of 68947480 in words is "sixty-eight million, nine hundred forty-seven thousand, four hundred eighty".