84914509 has 4 divisors (see below), whose sum is σ = 86110560. Its totient is φ = 83718460.

The previous prime is 84914497. The next prime is 84914537. The reversal of 84914509 is 90541948.

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 a de Polignac number, because none of the positive numbers 2^k-84914509 is a prime.

It is a super-2 number, since 2×84914509² = 14420947677422162, 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 (84914579) 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, 597919 + ... + 598060.

It is an arithmetic number, because the mean of its divisors is an integer number (21527640).

Almost surely, 2^84914509 is an apocalyptic number.

It is an amenable number.

84914509 is a deficient number, since it is larger than the sum of its proper divisors (1196051).

84914509 is a wasteful number, since it uses less digits than its factorization.

84914509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196050.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 84914509 is about 9214.9068904683. The cubic root of 84914509 is about 439.5355101742.

The spelling of 84914509 in words is "eighty-four million, nine hundred fourteen thousand, five hundred nine".