87814387 has 2 divisors, whose sum is σ = 87814388. Its totient is φ = 87814386.

The previous prime is 87814373. The next prime is 87814399. The reversal of 87814387 is 78341878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87814387 - 2¹¹ = 87812339 is a prime.

It is a super-2 number, since 2×87814387² = 15422733128371538, which contains 22 as substring.

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 (87814687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43907193 + 43907194.

It is an arithmetic number, because the mean of its divisors is an integer number (43907194).

Almost surely, 2^87814387 is an apocalyptic number.

87814387 is a deficient number, since it is larger than the sum of its proper divisors (1).

87814387 is an equidigital number, since it uses as much as digits as its factorization.

87814387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 46.

The square root of 87814387 is about 9370.9330912135. The cubic root of 87814387 is about 444.4830710017.

The spelling of 87814387 in words is "eighty-seven million, eight hundred fourteen thousand, three hundred eighty-seven".