87683719 has 2 divisors, whose sum is σ = 87683720. Its totient is φ = 87683718.

The previous prime is 87683647. The next prime is 87683723. The reversal of 87683719 is 91738678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87683719 - 2¹³ = 87675527 is a prime.

It is a super-2 number, since 2×87683719² = 15376869155341922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87683749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43841859 + 43841860.

It is an arithmetic number, because the mean of its divisors is an integer number (43841860).

Almost surely, 2^87683719 is an apocalyptic number.

87683719 is a deficient number, since it is larger than the sum of its proper divisors (1).

87683719 is an equidigital number, since it uses as much as digits as its factorization.

87683719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 87683719 is about 9363.9585112280. The cubic root of 87683719 is about 444.2624976335.

The spelling of 87683719 in words is "eighty-seven million, six hundred eighty-three thousand, seven hundred nineteen".