98866555 has 4 divisors (see below), whose sum is σ = 118639872. Its totient is φ = 79093240.

The previous prime is 98866549. The next prime is 98866567. The reversal of 98866555 is 55566889.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55566889 = 7 ⋅7938127.

It is not a de Polignac number, because 98866555 - 2⁹ = 98866043 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9886651 + ... + 9886660.

It is an arithmetic number, because the mean of its divisors is an integer number (29659968).

Almost surely, 2^98866555 is an apocalyptic number.

98866555 is a deficient number, since it is larger than the sum of its proper divisors (19773317).

98866555 is a wasteful number, since it uses less digits than its factorization.

98866555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19773316.

The product of its digits is 2592000, while the sum is 52.

The square root of 98866555 is about 9943.1662462216. The cubic root of 98866555 is about 462.3985538397.

The spelling of 98866555 in words is "ninety-eight million, eight hundred sixty-six thousand, five hundred fifty-five".