84250505 has 8 divisors (see below), whose sum is σ = 101154312. Its totient is φ = 67364608.

The previous prime is 84250499. The next prime is 84250519. The reversal of 84250505 is 50505248.

It can be written as a sum of positive squares in 4 ways, for example, as 28344976 + 55905529 = 5324^2 + 7477^2 .

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 84250505 - 2¹⁸ = 83988361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10337 + ... + 16593.

It is an arithmetic number, because the mean of its divisors is an integer number (12644289).

Almost surely, 2^84250505 is an apocalyptic number.

It is an amenable number.

84250505 is a deficient number, since it is larger than the sum of its proper divisors (16903807).

84250505 is a wasteful number, since it uses less digits than its factorization.

84250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8955.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 84250505 is about 9178.8073844046. The cubic root of 84250505 is about 438.3868356803.

The spelling of 84250505 in words is "eighty-four million, two hundred fifty thousand, five hundred five".