98805861 has 48 divisors (see below), whose sum is σ = 185702400. Its totient is φ = 49088160.

The previous prime is 98805857. The next prime is 98805869. The reversal of 98805861 is 16850889.

It is not a de Polignac number, because 98805861 - 2² = 98805857 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98805869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12840 + ... + 19038.

It is an arithmetic number, because the mean of its divisors is an integer number (3868800).

Almost surely, 2^98805861 is an apocalyptic number.

It is an amenable number.

98805861 is a deficient number, since it is larger than the sum of its proper divisors (86896539).

98805861 is a wasteful number, since it uses less digits than its factorization.

98805861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246 (or 6243 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 98805861 is about 9940.1137317437. The cubic root of 98805861 is about 462.3039125907.

The spelling of 98805861 in words is "ninety-eight million, eight hundred five thousand, eight hundred sixty-one".