87851119 has 2 divisors, whose sum is σ = 87851120. Its totient is φ = 87851118.

The previous prime is 87851111. The next prime is 87851123. The reversal of 87851119 is 91115878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87851119 - 2³ = 87851111 is a prime.

It is a super-2 number, since 2×87851119² = 15435638219104322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87851111) 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, 43925559 + 43925560.

It is an arithmetic number, because the mean of its divisors is an integer number (43925560).

Almost surely, 2^87851119 is an apocalyptic number.

87851119 is a deficient number, since it is larger than the sum of its proper divisors (1).

87851119 is an equidigital number, since it uses as much as digits as its factorization.

87851119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 40.

The square root of 87851119 is about 9372.8927765125. The cubic root of 87851119 is about 444.5450368397.

The spelling of 87851119 in words is "eighty-seven million, eight hundred fifty-one thousand, one hundred nineteen".