87045071 has 2 divisors, whose sum is σ = 87045072. Its totient is φ = 87045070.

The previous prime is 87045067. The next prime is 87045073. The reversal of 87045071 is 17054078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87045071 - 2² = 87045067 is a prime.

Together with 87045073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87045073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43522535 + 43522536.

It is an arithmetic number, because the mean of its divisors is an integer number (43522536).

Almost surely, 2^87045071 is an apocalyptic number.

87045071 is a deficient number, since it is larger than the sum of its proper divisors (1).

87045071 is an equidigital number, since it uses as much as digits as its factorization.

87045071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 87045071 is about 9329.7947994583. The cubic root of 87045071 is about 443.1812668705.

The spelling of 87045071 in words is "eighty-seven million, forty-five thousand, seventy-one".