87046471 has 2 divisors, whose sum is σ = 87046472. Its totient is φ = 87046470.

The previous prime is 87046457. The next prime is 87046483. The reversal of 87046471 is 17464078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87046471 - 2⁷ = 87046343 is a prime.

It is a super-3 number, since 3×87046471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 87046471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87046571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43523235 + 43523236.

It is an arithmetic number, because the mean of its divisors is an integer number (43523236).

Almost surely, 2^87046471 is an apocalyptic number.

87046471 is a deficient number, since it is larger than the sum of its proper divisors (1).

87046471 is an equidigital number, since it uses as much as digits as its factorization.

87046471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 87046471 is about 9329.8698276021. The cubic root of 87046471 is about 443.1836428444.

The spelling of 87046471 in words is "eighty-seven million, forty-six thousand, four hundred seventy-one".