87258763 has 2 divisors, whose sum is σ = 87258764. Its totient is φ = 87258762.

The previous prime is 87258761. The next prime is 87258781. The reversal of 87258763 is 36785278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87258763 - 2¹ = 87258761 is a prime.

It is a super-2 number, since 2×87258763² = 15228183440580338, which contains 22 as substring.

Together with 87258761, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (87258761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43629381 + 43629382.

It is an arithmetic number, because the mean of its divisors is an integer number (43629382).

Almost surely, 2^87258763 is an apocalyptic number.

87258763 is a deficient number, since it is larger than the sum of its proper divisors (1).

87258763 is an equidigital number, since it uses as much as digits as its factorization.

87258763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 46.

The square root of 87258763 is about 9341.2399069931. The cubic root of 87258763 is about 443.5436343098.

The spelling of 87258763 in words is "eighty-seven million, two hundred fifty-eight thousand, seven hundred sixty-three".