447019397 has 8 divisors (see below), whose sum is σ = 498033792. Its totient is φ = 397734400.

The previous prime is 447019373. The next prime is 447019399. The reversal of 447019397 is 793910744.

It is a happy number.

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 447019397 - 2¹⁶ = 446953861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447019399) 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, 431804 + ... + 432837.

It is an arithmetic number, because the mean of its divisors is an integer number (62254224).

Almost surely, 2^447019397 is an apocalyptic number.

447019397 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

447019397 is a deficient number, since it is larger than the sum of its proper divisors (51014395).

447019397 is a wasteful number, since it uses less digits than its factorization.

447019397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864699.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 447019397 is about 21142.8332301988. The cubic root of 447019397 is about 764.6137837177.

The spelling of 447019397 in words is "four hundred forty-seven million, nineteen thousand, three hundred ninety-seven".