98554987 has 2 divisors, whose sum is σ = 98554988. Its totient is φ = 98554986.

The previous prime is 98554979. The next prime is 98554991. The reversal of 98554987 is 78945589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98554987 - 2³ = 98554979 is a prime.

It is not a weakly prime, because it can be changed into another prime (98554087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49277493 + 49277494.

It is an arithmetic number, because the mean of its divisors is an integer number (49277494).

Almost surely, 2^98554987 is an apocalyptic number.

98554987 is a deficient number, since it is larger than the sum of its proper divisors (1).

98554987 is an equidigital number, since it uses as much as digits as its factorization.

98554987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 98554987 is about 9927.4864391748. The cubic root of 98554987 is about 461.9123085253.

The spelling of 98554987 in words is "ninety-eight million, five hundred fifty-four thousand, nine hundred eighty-seven".