84613217 has 8 divisors (see below), whose sum is σ = 93345000. Its totient is φ = 76199040.

The previous prime is 84613201. The next prime is 84613219. The reversal of 84613217 is 71231648.

It can be written as a sum of positive squares in 4 ways, for example, as 15124321 + 69488896 = 3889^2 + 8336^2 .

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 84613217 - 2⁴ = 84613201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84613219) 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, 78842 + ... + 79907.

It is an arithmetic number, because the mean of its divisors is an integer number (11668125).

Almost surely, 2^84613217 is an apocalyptic number.

It is an amenable number.

84613217 is a deficient number, since it is larger than the sum of its proper divisors (8731783).

84613217 is a wasteful number, since it uses less digits than its factorization.

84613217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158803.

The product of its digits is 8064, while the sum is 32.

The square root of 84613217 is about 9198.5442870054. The cubic root of 84613217 is about 439.0150436848.

The spelling of 84613217 in words is "eighty-four million, six hundred thirteen thousand, two hundred seventeen".