447979798 has 8 divisors (see below), whose sum is σ = 767965392. Its totient is φ = 191991336.

The previous prime is 447979793. The next prime is 447979813. The reversal of 447979798 is 897979744.

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

It is a super-2 number, since 2×447979798² = 401371798832241608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447979793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15999265 + ... + 15999292.

It is an arithmetic number, because the mean of its divisors is an integer number (95995674).

Almost surely, 2^447979798 is an apocalyptic number.

447979798 is a deficient number, since it is larger than the sum of its proper divisors (319985594).

447979798 is a wasteful number, since it uses less digits than its factorization.

447979798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31998566.

The product of its digits is 32006016, while the sum is 64.

The square root of 447979798 is about 21165.5332557439. The cubic root of 447979798 is about 765.1609714373.

The spelling of 447979798 in words is "four hundred forty-seven million, nine hundred seventy-nine thousand, seven hundred ninety-eight".