87453719 has 2 divisors, whose sum is σ = 87453720. Its totient is φ = 87453718.

The previous prime is 87453683. The next prime is 87453727. The reversal of 87453719 is 91735478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87453719 - 2⁸ = 87453463 is a prime.

It is a super-2 number, since 2×87453719² = 15296305933861922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87453719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87453739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726859 + 43726860.

It is an arithmetic number, because the mean of its divisors is an integer number (43726860).

Almost surely, 2^87453719 is an apocalyptic number.

87453719 is a deficient number, since it is larger than the sum of its proper divisors (1).

87453719 is an equidigital number, since it uses as much as digits as its factorization.

87453719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 44.

The square root of 87453719 is about 9351.6693162237. The cubic root of 87453719 is about 443.8737145241.

The spelling of 87453719 in words is "eighty-seven million, four hundred fifty-three thousand, seven hundred nineteen".