87296189 has 2 divisors, whose sum is σ = 87296190. Its totient is φ = 87296188.

The previous prime is 87296179. The next prime is 87296197. The reversal of 87296189 is 98169278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 32684089 = 7390^2 + 5717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87296189 is a prime.

It is a super-2 number, since 2×87296189² = 15241249227847442, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87296179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43648094 + 43648095.

It is an arithmetic number, because the mean of its divisors is an integer number (43648095).

Almost surely, 2^87296189 is an apocalyptic number.

It is an amenable number.

87296189 is a deficient number, since it is larger than the sum of its proper divisors (1).

87296189 is an equidigital number, since it uses as much as digits as its factorization.

87296189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 50.

The square root of 87296189 is about 9343.2429594868. The cubic root of 87296189 is about 443.6070384148.

The spelling of 87296189 in words is "eighty-seven million, two hundred ninety-six thousand, one hundred eighty-nine".