447709497 has 16 divisors (see below), whose sum is σ = 608957568. Its totient is φ = 292481280.

The previous prime is 447709469. The next prime is 447709519. The reversal of 447709497 is 794907744.

It is a de Polignac number, because none of the positive numbers 2^k-447709497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447709397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206097 + ... + 208257.

It is an arithmetic number, because the mean of its divisors is an integer number (38059848).

Almost surely, 2^447709497 is an apocalyptic number.

It is an amenable number.

447709497 is a deficient number, since it is larger than the sum of its proper divisors (161248071).

447709497 is a wasteful number, since it uses less digits than its factorization.

447709497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 1778112, while the sum is 51.

The square root of 447709497 is about 21159.1468873393. The cubic root of 447709497 is about 765.0070467974.

The spelling of 447709497 in words is "four hundred forty-seven million, seven hundred nine thousand, four hundred ninety-seven".