84570229 has 8 divisors (see below), whose sum is σ = 85600440. Its totient is φ = 83544000.

The previous prime is 84570221. The next prime is 84570247. The reversal of 84570229 is 92207548.

It can be written as a sum of positive squares in 4 ways, for example, as 37332100 + 47238129 = 6110^2 + 6873^2 .

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 84570229 - 2³ = 84570221 is a prime.

It is a super-2 number, since 2×84570229² = 14304247266224882, 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 (84570221) 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, 71019 + ... + 72199.

It is an arithmetic number, because the mean of its divisors is an integer number (10700055).

Almost surely, 2^84570229 is an apocalyptic number.

It is an amenable number.

84570229 is a deficient number, since it is larger than the sum of its proper divisors (1030211).

84570229 is a wasteful number, since it uses less digits than its factorization.

84570229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 84570229 is about 9196.2073160624. The cubic root of 84570229 is about 438.9406834516.

The spelling of 84570229 in words is "eighty-four million, five hundred seventy thousand, two hundred twenty-nine".