87079471 has 2 divisors, whose sum is σ = 87079472. Its totient is φ = 87079470.

The previous prime is 87079459. The next prime is 87079481. The reversal of 87079471 is 17497078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87079471 - 2⁵ = 87079439 is a prime.

It is a super-3 number, since 3×87079471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87079481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43539735 + 43539736.

It is an arithmetic number, because the mean of its divisors is an integer number (43539736).

Almost surely, 2^87079471 is an apocalyptic number.

87079471 is a deficient number, since it is larger than the sum of its proper divisors (1).

87079471 is an equidigital number, since it uses as much as digits as its factorization.

87079471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 87079471 is about 9331.6381734399. The cubic root of 87079471 is about 443.2396405671.

The spelling of 87079471 in words is "eighty-seven million, seventy-nine thousand, four hundred seventy-one".