84529285 has 4 divisors (see below), whose sum is σ = 101435148. Its totient is φ = 67623424.

The previous prime is 84529283. The next prime is 84529297. The reversal of 84529285 is 58292548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33849124 + 50680161 = 5818^2 + 7119^2 .

It is a cyclic number.

It is not a de Polignac number, because 84529285 - 2¹ = 84529283 is a prime.

It is a super-2 number, since 2×84529285² = 14290400045222450, 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 (84529283) 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, 8452924 + ... + 8452933.

It is an arithmetic number, because the mean of its divisors is an integer number (25358787).

Almost surely, 2^84529285 is an apocalyptic number.

It is an amenable number.

84529285 is a deficient number, since it is larger than the sum of its proper divisors (16905863).

84529285 is a wasteful number, since it uses less digits than its factorization.

84529285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16905862.

The product of its digits is 230400, while the sum is 43.

The square root of 84529285 is about 9193.9809114442. The cubic root of 84529285 is about 438.8698354764.

The spelling of 84529285 in words is "eighty-four million, five hundred twenty-nine thousand, two hundred eighty-five".