87069659 has 2 divisors, whose sum is σ = 87069660. Its totient is φ = 87069658.

The previous prime is 87069617. The next prime is 87069667. The reversal of 87069659 is 95696078.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87069659 is a prime.

It is a super-2 number, since 2×87069659² = 15162251036752562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87069259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43534829 + 43534830.

It is an arithmetic number, because the mean of its divisors is an integer number (43534830).

Almost surely, 2^87069659 is an apocalyptic number.

87069659 is a deficient number, since it is larger than the sum of its proper divisors (1).

87069659 is an equidigital number, since it uses as much as digits as its factorization.

87069659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 87069659 is about 9331.1124202852. The cubic root of 87069659 is about 443.2229920556. Note that the first 3 decimals are identical.

The spelling of 87069659 in words is "eighty-seven million, sixty-nine thousand, six hundred fifty-nine".