447758680 has 32 divisors (see below), whose sum is σ = 1008126000. Its totient is φ = 178984576.

The previous prime is 447758677. The next prime is 447758683. The reversal of 447758680 is 86857744.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (447758677) and next prime (447758683).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447758683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81294 + ... + 86626.

Almost surely, 2^447758680 is an apocalyptic number.

447758680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447758680 is an abundant number, since it is smaller than the sum of its proper divisors (560367320).

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

447758680 is a wasteful number, since it uses less digits than its factorization.

447758680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443 (or 7439 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The square root of 447758680 is about 21160.3090714668. The cubic root of 447758680 is about 765.0350589825.

The spelling of 447758680 in words is "four hundred forty-seven million, seven hundred fifty-eight thousand, six hundred eighty".