447740247 has 8 divisors (see below), whose sum is σ = 597103344. Its totient is φ = 298435328.

The previous prime is 447740233. The next prime is 447740261. The reversal of 447740247 is 742047744.

It is an interprime number because it is at equal distance from previous prime (447740233) and next prime (447740261).

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

It is a cyclic number.

It is not a de Polignac number, because 447740247 - 2⁴ = 447740231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447740207) 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, 8743 + ... + 31175.

It is an arithmetic number, because the mean of its divisors is an integer number (74637918).

Almost surely, 2^447740247 is an apocalyptic number.

447740247 is a deficient number, since it is larger than the sum of its proper divisors (149363097).

447740247 is a wasteful number, since it uses less digits than its factorization.

447740247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29089.

The product of its (nonzero) digits is 175616, while the sum is 39.

The square root of 447740247 is about 21159.8735109641. The cubic root of 447740247 is about 765.0245607049.

The spelling of 447740247 in words is "four hundred forty-seven million, seven hundred forty thousand, two hundred forty-seven".