87765463 has 2 divisors, whose sum is σ = 87765464. Its totient is φ = 87765462.

The previous prime is 87765439. The next prime is 87765499. The reversal of 87765463 is 36456778.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87765463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87765163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43882731 + 43882732.

It is an arithmetic number, because the mean of its divisors is an integer number (43882732).

Almost surely, 2^87765463 is an apocalyptic number.

87765463 is a deficient number, since it is larger than the sum of its proper divisors (1).

87765463 is an equidigital number, since it uses as much as digits as its factorization.

87765463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 87765463 is about 9368.3223151213. The cubic root of 87765463 is about 444.4005107661.

The spelling of 87765463 in words is "eighty-seven million, seven hundred sixty-five thousand, four hundred sixty-three".