447676638 has 8 divisors (see below), whose sum is σ = 895353288. Its totient is φ = 149225544.

The previous prime is 447676627. The next prime is 447676643. The reversal of 447676638 is 836676744.

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

447676638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37306381 + ... + 37306392.

It is an arithmetic number, because the mean of its divisors is an integer number (111919161).

Almost surely, 2^447676638 is an apocalyptic number.

447676638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

447676638 is a wasteful number, since it uses less digits than its factorization.

447676638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74612778.

The product of its digits is 4064256, while the sum is 51.

The square root of 447676638 is about 21158.3704003876. The cubic root of 447676638 is about 764.9883308058.

The spelling of 447676638 in words is "four hundred forty-seven million, six hundred seventy-six thousand, six hundred thirty-eight".