87390463 has 2 divisors, whose sum is σ = 87390464. Its totient is φ = 87390462.

The previous prime is 87390461. The next prime is 87390469. The reversal of 87390463 is 36409378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87390463 - 2¹ = 87390461 is a prime.

Together with 87390461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87390461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43695231 + 43695232.

It is an arithmetic number, because the mean of its divisors is an integer number (43695232).

Almost surely, 2^87390463 is an apocalyptic number.

87390463 is a deficient number, since it is larger than the sum of its proper divisors (1).

87390463 is an equidigital number, since it uses as much as digits as its factorization.

87390463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 87390463 is about 9348.2866344587. The cubic root of 87390463 is about 443.7666695318.

The spelling of 87390463 in words is "eighty-seven million, three hundred ninety thousand, four hundred sixty-three".