447470749 has 8 divisors (see below), whose sum is σ = 489093120. Its totient is φ = 406005600.

The previous prime is 447470743. The next prime is 447470759. The reversal of 447470749 is 947074744.

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

It is not a de Polignac number, because 447470749 - 2³ = 447470741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447470699 and 447470708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447470741) 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, 33309 + ... + 44770.

It is an arithmetic number, because the mean of its divisors is an integer number (61136640).

Almost surely, 2^447470749 is an apocalyptic number.

It is an amenable number.

447470749 is a deficient number, since it is larger than the sum of its proper divisors (41622371).

447470749 is a wasteful number, since it uses less digits than its factorization.

447470749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78611.

The product of its (nonzero) digits is 790272, while the sum is 46.

The square root of 447470749 is about 21153.5044141627. The cubic root of 447470749 is about 764.8710386797.

The spelling of 447470749 in words is "four hundred forty-seven million, four hundred seventy thousand, seven hundred forty-nine".