84112901 has 4 divisors (see below), whose sum is σ = 84945804. Its totient is φ = 83280000.

The previous prime is 84112891. The next prime is 84112927. The reversal of 84112901 is 10921148.

84112901 is nontrivially palindromic in base 2.

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 78304801 + 5808100 = 8849^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 84112901 - 2¹⁰ = 84111877 is a prime.

It is a super-2 number, since 2×84112901² = 14149960229271602, 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 (84112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416300 + ... + 416501.

It is an arithmetic number, because the mean of its divisors is an integer number (21236451).

Almost surely, 2^84112901 is an apocalyptic number.

It is an amenable number.

84112901 is a deficient number, since it is larger than the sum of its proper divisors (832903).

84112901 is a wasteful number, since it uses less digits than its factorization.

84112901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832902.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 84112901 is about 9171.3085762066. The cubic root of 84112901 is about 438.1480372949.

The spelling of 84112901 in words is "eighty-four million, one hundred twelve thousand, nine hundred one".