87227519 has 2 divisors, whose sum is σ = 87227520. Its totient is φ = 87227518.

The previous prime is 87227467. The next prime is 87227557. The reversal of 87227519 is 91572278.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87227519 is a prime.

It is a super-2 number, since 2×87227519² = 15217280141790722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87227579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43613759 + 43613760.

It is an arithmetic number, because the mean of its divisors is an integer number (43613760).

Almost surely, 2^87227519 is an apocalyptic number.

87227519 is a deficient number, since it is larger than the sum of its proper divisors (1).

87227519 is an equidigital number, since it uses as much as digits as its factorization.

87227519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 87227519 is about 9339.5673882680. The cubic root of 87227519 is about 443.4906893631.

The spelling of 87227519 in words is "eighty-seven million, two hundred twenty-seven thousand, five hundred nineteen".