98390087 has 2 divisors, whose sum is σ = 98390088. Its totient is φ = 98390086.

The previous prime is 98390051. The next prime is 98390099. The reversal of 98390087 is 78009389.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98390087 - 2⁶ = 98390023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98390027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49195043 + 49195044.

It is an arithmetic number, because the mean of its divisors is an integer number (49195044).

Almost surely, 2^98390087 is an apocalyptic number.

98390087 is a deficient number, since it is larger than the sum of its proper divisors (1).

98390087 is an equidigital number, since it uses as much as digits as its factorization.

98390087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 98390087 is about 9919.1777380991. The cubic root of 98390087 is about 461.6545442621.

The spelling of 98390087 in words is "ninety-eight million, three hundred ninety thousand, eighty-seven".