84034281 has 16 divisors (see below), whose sum is σ = 120412224. Its totient is φ = 51938304.

The previous prime is 84034267. The next prime is 84034339. The reversal of 84034281 is 18243048.

It is not a de Polignac number, because 84034281 - 2⁶ = 84034217 is a prime.

It is a super-2 number, since 2×84034281² = 14123520766373922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84034241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880 + ... + 15713.

It is an arithmetic number, because the mean of its divisors is an integer number (7525764).

Almost surely, 2^84034281 is an apocalyptic number.

It is an amenable number.

84034281 is a deficient number, since it is larger than the sum of its proper divisors (36377943).

84034281 is a wasteful number, since it uses less digits than its factorization.

84034281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24680.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 84034281 is about 9167.0213810158. The cubic root of 84034281 is about 438.0114829875.

The spelling of 84034281 in words is "eighty-four million, thirty-four thousand, two hundred eighty-one".