98956861 has 4 divisors (see below), whose sum is σ = 98976924. Its totient is φ = 98936800.

The previous prime is 98956841. The next prime is 98956873. The reversal of 98956861 is 16865989.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12355225 + 86601636 = 3515^2 + 9306^2 .

It is a cyclic number.

It is not a de Polignac number, because 98956861 - 2⁹ = 98956349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98956799 and 98956808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98956801) 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, 3081 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (24744231).

Almost surely, 2^98956861 is an apocalyptic number.

It is an amenable number.

98956861 is a deficient number, since it is larger than the sum of its proper divisors (20063).

98956861 is a wasteful number, since it uses less digits than its factorization.

98956861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20062.

The product of its digits is 933120, while the sum is 52.

The square root of 98956861 is about 9947.7063185440. The cubic root of 98956861 is about 462.5392979513.

The spelling of 98956861 in words is "ninety-eight million, nine hundred fifty-six thousand, eight hundred sixty-one".