447651407 has 12 divisors (see below), whose sum is σ = 533440656. Its totient is φ = 374340960.

The previous prime is 447651397. The next prime is 447651427. The reversal of 447651407 is 704156744.

It is a happy number.

It is not a de Polignac number, because 447651407 - 2¹⁶ = 447585871 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447651427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109403 + ... + 113420.

It is an arithmetic number, because the mean of its divisors is an integer number (44453388).

Almost surely, 2^447651407 is an apocalyptic number.

447651407 is a deficient number, since it is larger than the sum of its proper divisors (85789249).

447651407 is a wasteful number, since it uses less digits than its factorization.

447651407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222878 (or 222871 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 447651407 is about 21157.7741504157. The cubic root of 447651407 is about 764.9739589865.

The spelling of 447651407 in words is "four hundred forty-seven million, six hundred fifty-one thousand, four hundred seven".