447698397 has 8 divisors (see below), whose sum is σ = 597031200. Its totient is φ = 298415600.

The previous prime is 447698371. The next prime is 447698399. The reversal of 447698397 is 793896744.

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 447698397 - 2⁶ = 447698333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447698399) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21979 + ... + 37127.

It is an arithmetic number, because the mean of its divisors is an integer number (74628900).

Almost surely, 2^447698397 is an apocalyptic number.

It is an amenable number.

447698397 is a deficient number, since it is larger than the sum of its proper divisors (149332803).

447698397 is a wasteful number, since it uses less digits than its factorization.

447698397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25003.

The product of its digits is 9144576, while the sum is 57.

The square root of 447698397 is about 21158.8845878038. The cubic root of 447698397 is about 765.0007245070. Note that the first 3 decimals are identical.

The spelling of 447698397 in words is "four hundred forty-seven million, six hundred ninety-eight thousand, three hundred ninety-seven".