98581655 has 4 divisors (see below), whose sum is σ = 118297992. Its totient is φ = 78865320.

The previous prime is 98581631. The next prime is 98581663. The reversal of 98581655 is 55618589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55618589 = 13 ⋅4278353.

It is not a de Polignac number, because 98581655 - 2¹⁰ = 98580631 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 9858161 + ... + 9858170.

It is an arithmetic number, because the mean of its divisors is an integer number (29574498).

Almost surely, 2^98581655 is an apocalyptic number.

98581655 is a deficient number, since it is larger than the sum of its proper divisors (19716337).

98581655 is a wasteful number, since it uses less digits than its factorization.

98581655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716336.

The product of its digits is 432000, while the sum is 47.

The square root of 98581655 is about 9928.8294879104. The cubic root of 98581655 is about 461.9539677280.

The spelling of 98581655 in words is "ninety-eight million, five hundred eighty-one thousand, six hundred fifty-five".