447646413 has 8 divisors (see below), whose sum is σ = 598060000. Its totient is φ = 297831888.

The previous prime is 447646391. The next prime is 447646421. The reversal of 447646413 is 314646744.

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

It is not a de Polignac number, because 447646413 - 2⁹ = 447645901 is a prime.

It is a super-2 number, since 2×447646413² = 400774622143533138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447646453) 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, 148018 + ... + 151011.

It is an arithmetic number, because the mean of its divisors is an integer number (74757500).

Almost surely, 2^447646413 is an apocalyptic number.

It is an amenable number.

447646413 is a deficient number, since it is larger than the sum of its proper divisors (150413587).

447646413 is a wasteful number, since it uses less digits than its factorization.

447646413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299531.

The product of its digits is 193536, while the sum is 39.

The square root of 447646413 is about 21157.6561320010. The cubic root of 447646413 is about 764.9711142923.

The spelling of 447646413 in words is "four hundred forty-seven million, six hundred forty-six thousand, four hundred thirteen".