87084029 has 2 divisors, whose sum is σ = 87084030. Its totient is φ = 87084028.

The previous prime is 87084007. The next prime is 87084031. The reversal of 87084029 is 92048078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 9467929 = 8810^2 + 3077^2 .

It is a cyclic number.

It is not a de Polignac number, because 87084029 - 2²⁴ = 70306813 is a prime.

Together with 87084031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87083983 and 87084001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87084089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43542014 + 43542015.

It is an arithmetic number, because the mean of its divisors is an integer number (43542015).

Almost surely, 2^87084029 is an apocalyptic number.

It is an amenable number.

87084029 is a deficient number, since it is larger than the sum of its proper divisors (1).

87084029 is an equidigital number, since it uses as much as digits as its factorization.

87084029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 87084029 is about 9331.8823931723. The cubic root of 87084029 is about 443.2473739284.

The spelling of 87084029 in words is "eighty-seven million, eighty-four thousand, twenty-nine".