447700890 has 64 divisors (see below), whose sum is σ = 1322447616. Its totient is φ = 94459392.

The previous prime is 447700889. The next prime is 447700949. The reversal of 447700890 is 98007744.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79267 + ... + 84726.

It is an arithmetic number, because the mean of its divisors is an integer number (20663244).

Almost surely, 2^447700890 is an apocalyptic number.

447700890 is an abundant number, since it is smaller than the sum of its proper divisors (874746726).

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

447700890 is a wasteful number, since it uses less digits than its factorization.

447700890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164023.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 447700890 is about 21158.9434991448. The cubic root of 447700890 is about 765.0021444683.

The spelling of 447700890 in words is "four hundred forty-seven million, seven hundred thousand, eight hundred ninety".