84447413 has 8 divisors (see below), whose sum is σ = 87367896. Its totient is φ = 81568000.

The previous prime is 84447401. The next prime is 84447427. The reversal of 84447413 is 31474448.

It can be written as a sum of positive squares in 4 ways, for example, as 14273284 + 70174129 = 3778^2 + 8377^2 .

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 84447413 - 2⁴ = 84447397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84447443) 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, 6056 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (10920987).

Almost surely, 2^84447413 is an apocalyptic number.

It is an amenable number.

84447413 is a deficient number, since it is larger than the sum of its proper divisors (2920483).

84447413 is a wasteful number, since it uses less digits than its factorization.

84447413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20535.

The product of its digits is 43008, while the sum is 35.

The square root of 84447413 is about 9189.5273545488. The cubic root of 84447413 is about 438.7280985704.

The spelling of 84447413 in words is "eighty-four million, four hundred forty-seven thousand, four hundred thirteen".