87358091 has 2 divisors, whose sum is σ = 87358092. Its totient is φ = 87358090.

The previous prime is 87358079. The next prime is 87358099. The reversal of 87358091 is 19085378.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87358091 - 2⁶ = 87358027 is a prime.

It is not a weakly prime, because it can be changed into another prime (87358099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43679045 + 43679046.

It is an arithmetic number, because the mean of its divisors is an integer number (43679046).

Almost surely, 2^87358091 is an apocalyptic number.

87358091 is a deficient number, since it is larger than the sum of its proper divisors (1).

87358091 is an equidigital number, since it uses as much as digits as its factorization.

87358091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 87358091 is about 9346.5550338079. Note that the first 3 decimals coincide. The cubic root of 87358091 is about 443.7118680187.

The spelling of 87358091 in words is "eighty-seven million, three hundred fifty-eight thousand, ninety-one".