98551787 has 2 divisors, whose sum is σ = 98551788. Its totient is φ = 98551786.

The previous prime is 98551769. The next prime is 98551799. The reversal of 98551787 is 78715589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98551787 - 2¹⁰ = 98550763 is a prime.

It is not a weakly prime, because it can be changed into another prime (98553787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49275893 + 49275894.

It is an arithmetic number, because the mean of its divisors is an integer number (49275894).

Almost surely, 2^98551787 is an apocalyptic number.

98551787 is a deficient number, since it is larger than the sum of its proper divisors (1).

98551787 is an equidigital number, since it uses as much as digits as its factorization.

98551787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 50.

The square root of 98551787 is about 9927.3252691750. The cubic root of 98551787 is about 461.9073091660.

The spelling of 98551787 in words is "ninety-eight million, five hundred fifty-one thousand, seven hundred eighty-seven".