87650663 has 2 divisors, whose sum is σ = 87650664. Its totient is φ = 87650662.

The previous prime is 87650653. The next prime is 87650683. The reversal of 87650663 is 36605678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87650663 - 2⁶ = 87650599 is a prime.

It is a super-3 number, since 3×87650663³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87650663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87650603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43825331 + 43825332.

It is an arithmetic number, because the mean of its divisors is an integer number (43825332).

Almost surely, 2^87650663 is an apocalyptic number.

87650663 is a deficient number, since it is larger than the sum of its proper divisors (1).

87650663 is an equidigital number, since it uses as much as digits as its factorization.

87650663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 87650663 is about 9362.1932793550. The cubic root of 87650663 is about 444.2066629164.

The spelling of 87650663 in words is "eighty-seven million, six hundred fifty thousand, six hundred sixty-three".