84226009 has 4 divisors (see below), whose sum is σ = 96258304. Its totient is φ = 72193716.

The previous prime is 84226003. The next prime is 84226033. The reversal of 84226009 is 90062248.

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 not a de Polignac number, because 84226009 - 2¹³ = 84217817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84226003) 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, 6016137 + ... + 6016150.

It is an arithmetic number, because the mean of its divisors is an integer number (24064576).

Almost surely, 2^84226009 is an apocalyptic number.

It is an amenable number.

84226009 is a deficient number, since it is larger than the sum of its proper divisors (12032295).

84226009 is a wasteful number, since it uses less digits than its factorization.

84226009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12032294.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 84226009 is about 9177.4729092490. The cubic root of 84226009 is about 438.3443442837.

The spelling of 84226009 in words is "eighty-four million, two hundred twenty-six thousand, nine".