98359405987 has 4 divisors (see below), whose sum is σ = 104145253416. Its totient is φ = 92573558560.

The previous prime is 98359405961. The next prime is 98359406003. The reversal of 98359405987 is 78950495389.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98359405987 is a prime.

It is a super-2 number, since 2×98359405987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98359405927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892923689 + ... + 2892923722.

It is an arithmetic number, because the mean of its divisors is an integer number (26036313354).

Almost surely, 2^98359405987 is an apocalyptic number.

98359405987 is a deficient number, since it is larger than the sum of its proper divisors (5785847429).

98359405987 is a wasteful number, since it uses less digits than its factorization.

98359405987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785847428.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 98359405987 in words is "ninety-eight billion, three hundred fifty-nine million, four hundred five thousand, nine hundred eighty-seven".