84505849 has 4 divisors (see below), whose sum is σ = 84948480. Its totient is φ = 84063220.

The previous prime is 84505831. The next prime is 84505867. The reversal of 84505849 is 94850548.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (84505831) and next prime (84505867).

It is a cyclic number.

It is not a de Polignac number, because 84505849 - 2¹⁹ = 83981561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84505049) 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, 221029 + ... + 221410.

It is an arithmetic number, because the mean of its divisors is an integer number (21237120).

Almost surely, 2^84505849 is an apocalyptic number.

It is an amenable number.

84505849 is a deficient number, since it is larger than the sum of its proper divisors (442631).

84505849 is a wasteful number, since it uses less digits than its factorization.

84505849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442630.

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

The square root of 84505849 is about 9192.7062935786. The cubic root of 84505849 is about 438.8292723975.

The spelling of 84505849 in words is "eighty-four million, five hundred five thousand, eight hundred forty-nine".