87350491 has 2 divisors, whose sum is σ = 87350492. Its totient is φ = 87350490.

The previous prime is 87350443. The next prime is 87350509. The reversal of 87350491 is 19405378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87350491 - 2⁹ = 87349979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87350491.

It is not a weakly prime, because it can be changed into another prime (87350191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43675245 + 43675246.

It is an arithmetic number, because the mean of its divisors is an integer number (43675246).

Almost surely, 2^87350491 is an apocalyptic number.

87350491 is a deficient number, since it is larger than the sum of its proper divisors (1).

87350491 is an equidigital number, since it uses as much as digits as its factorization.

87350491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 87350491 is about 9346.1484580548. The cubic root of 87350491 is about 443.6990002620.

The spelling of 87350491 in words is "eighty-seven million, three hundred fifty thousand, four hundred ninety-one".