87796519 has 2 divisors, whose sum is σ = 87796520. Its totient is φ = 87796518.

The previous prime is 87796493. The next prime is 87796547. The reversal of 87796519 is 91569778.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87796519 - 2⁷ = 87796391 is a prime.

It is a super-2 number, since 2×87796519² = 15416457497034722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87796559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43898259 + 43898260.

It is an arithmetic number, because the mean of its divisors is an integer number (43898260).

Almost surely, 2^87796519 is an apocalyptic number.

87796519 is a deficient number, since it is larger than the sum of its proper divisors (1).

87796519 is an equidigital number, since it uses as much as digits as its factorization.

87796519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 52.

The square root of 87796519 is about 9369.9796691348. The cubic root of 87796519 is about 444.4529219471.

The spelling of 87796519 in words is "eighty-seven million, seven hundred ninety-six thousand, five hundred nineteen".