87208619 has 2 divisors, whose sum is σ = 87208620. Its totient is φ = 87208618.

The previous prime is 87208603. The next prime is 87208637. The reversal of 87208619 is 91680278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87208619 - 2⁴ = 87208603 is a prime.

It is a super-2 number, since 2×87208619² = 15210686455774322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87208669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43604309 + 43604310.

It is an arithmetic number, because the mean of its divisors is an integer number (43604310).

Almost surely, 2^87208619 is an apocalyptic number.

87208619 is a deficient number, since it is larger than the sum of its proper divisors (1).

87208619 is an equidigital number, since it uses as much as digits as its factorization.

87208619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 87208619 is about 9338.5555092851. Note that the first 4 decimals coincide. The cubic root of 87208619 is about 443.4586559728.

The spelling of 87208619 in words is "eighty-seven million, two hundred eight thousand, six hundred nineteen".