84535247 has 4 divisors (see below), whose sum is σ = 84561456. Its totient is φ = 84509040.

The previous prime is 84535219. The next prime is 84535249. The reversal of 84535247 is 74253548.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84535247 - 2⁸ = 84534991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84535247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84535249) 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, 7454 + ... + 14987.

It is an arithmetic number, because the mean of its divisors is an integer number (21140364).

Almost surely, 2^84535247 is an apocalyptic number.

84535247 is a deficient number, since it is larger than the sum of its proper divisors (26209).

84535247 is a wasteful number, since it uses less digits than its factorization.

84535247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26208.

The product of its digits is 134400, while the sum is 38.

The square root of 84535247 is about 9194.3051395959. The cubic root of 84535247 is about 438.8801533224.

The spelling of 84535247 in words is "eighty-four million, five hundred thirty-five thousand, two hundred forty-seven".