84151087 has 2 divisors, whose sum is σ = 84151088. Its totient is φ = 84151086.

The previous prime is 84151073. The next prime is 84151091. The reversal of 84151087 is 78015148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84151087 - 2⁷ = 84150959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84151987) 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 as a sum of consecutive naturals, namely, 42075543 + 42075544.

It is an arithmetic number, because the mean of its divisors is an integer number (42075544).

Almost surely, 2^84151087 is an apocalyptic number.

84151087 is a deficient number, since it is larger than the sum of its proper divisors (1).

84151087 is an equidigital number, since it uses as much as digits as its factorization.

84151087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 84151087 is about 9173.3901584965. The cubic root of 84151087 is about 438.2143314840.

The spelling of 84151087 in words is "eighty-four million, one hundred fifty-one thousand, eighty-seven".