84897617 has 4 divisors (see below), whose sum is σ = 97025856. Its totient is φ = 72769380.

The previous prime is 84897607. The next prime is 84897619. The reversal of 84897617 is 71679848.

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 a cyclic number.

It is not a de Polignac number, because 84897617 - 2¹⁰ = 84896593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84897619) 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, 6064109 + ... + 6064122.

It is an arithmetic number, because the mean of its divisors is an integer number (24256464).

Almost surely, 2^84897617 is an apocalyptic number.

It is an amenable number.

84897617 is a deficient number, since it is larger than the sum of its proper divisors (12128239).

84897617 is a wasteful number, since it uses less digits than its factorization.

84897617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128238.

The product of its digits is 677376, while the sum is 50.

The square root of 84897617 is about 9213.9902865154. The cubic root of 84897617 is about 439.5063627163.

The spelling of 84897617 in words is "eighty-four million, eight hundred ninety-seven thousand, six hundred seventeen".