84006137 has 4 divisors (see below), whose sum is σ = 85156980. Its totient is φ = 82855296.

The previous prime is 84006103. The next prime is 84006149. The reversal of 84006137 is 73160048.

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 56715961 + 27290176 = 7531^2 + 5224^2 .

It is a cyclic number.

It is not a de Polignac number, because 84006137 - 2¹⁴ = 83989753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84006337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575312 + ... + 575457.

It is an arithmetic number, because the mean of its divisors is an integer number (21289245).

Almost surely, 2^84006137 is an apocalyptic number.

It is an amenable number.

84006137 is a deficient number, since it is larger than the sum of its proper divisors (1150843).

84006137 is a wasteful number, since it uses less digits than its factorization.

84006137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150842.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 84006137 is about 9165.4861845949. The cubic root of 84006137 is about 437.9625792485.

The spelling of 84006137 in words is "eighty-four million, six thousand, one hundred thirty-seven".