447642413 has 4 divisors (see below), whose sum is σ = 471202560. Its totient is φ = 424082268.

The previous prime is 447642409. The next prime is 447642439. The reversal of 447642413 is 314246744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447642413 - 2² = 447642409 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 (447642443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11780045 + ... + 11780082.

It is an arithmetic number, because the mean of its divisors is an integer number (117800640).

Almost surely, 2^447642413 is an apocalyptic number.

It is an amenable number.

447642413 is a deficient number, since it is larger than the sum of its proper divisors (23560147).

447642413 is a wasteful number, since it uses less digits than its factorization.

447642413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23560146.

The product of its digits is 64512, while the sum is 35.

The square root of 447642413 is about 21157.5616033606. The cubic root of 447642413 is about 764.9688357874.

The spelling of 447642413 in words is "four hundred forty-seven million, six hundred forty-two thousand, four hundred thirteen".