84026289 has 4 divisors (see below), whose sum is σ = 112035056. Its totient is φ = 56017524.

The previous prime is 84026269. The next prime is 84026317. The reversal of 84026289 is 98262048.

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 84026289 - 2⁷ = 84026161 is a prime.

It is a super-2 number, since 2×84026289² = 14120834486223042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84026209) 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, 14004379 + ... + 14004384.

It is an arithmetic number, because the mean of its divisors is an integer number (28008764).

Almost surely, 2^84026289 is an apocalyptic number.

It is an amenable number.

84026289 is a deficient number, since it is larger than the sum of its proper divisors (28008767).

84026289 is a wasteful number, since it uses less digits than its factorization.

84026289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28008766.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 84026289 is about 9166.5854602464. The cubic root of 84026289 is about 437.9975969927.

The spelling of 84026289 in words is "eighty-four million, twenty-six thousand, two hundred eighty-nine".