84042269 has 4 divisors (see below), whose sum is σ = 84236796. Its totient is φ = 83847744.

The previous prime is 84042229. The next prime is 84042289. The reversal of 84042269 is 96224048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22231225 + 61811044 = 4715^2 + 7862^2 .

It is a cyclic number.

It is not a de Polignac number, because 84042269 - 2²⁰ = 82993693 is a prime.

It is a super-2 number, since 2×84042269² = 14126205957336722, 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 (84042229) 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, 96614 + ... + 97479.

It is an arithmetic number, because the mean of its divisors is an integer number (21059199).

Almost surely, 2^84042269 is an apocalyptic number.

It is an amenable number.

84042269 is a deficient number, since it is larger than the sum of its proper divisors (194527).

84042269 is a wasteful number, since it uses less digits than its factorization.

84042269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194526.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 84042269 is about 9167.4570628937. The cubic root of 84042269 is about 438.0253611525.

The spelling of 84042269 in words is "eighty-four million, forty-two thousand, two hundred sixty-nine".