98609864 has 16 divisors (see below), whose sum is σ = 186972300. Its totient is φ = 48750592.

The previous prime is 98609821. The next prime is 98609869. The reversal of 98609864 is 46890689.

It can be written as a sum of positive squares in 2 ways, for example, as 76912900 + 21696964 = 8770^2 + 4658^2 .

It is not an unprimeable number, because it can be changed into a prime (98609869) 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, 68537 + ... + 69960.

Almost surely, 2^98609864 is an apocalyptic number.

It is an amenable number.

98609864 is a deficient number, since it is larger than the sum of its proper divisors (88362436).

98609864 is a wasteful number, since it uses less digits than its factorization.

98609864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138592 (or 138588 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 98609864 is about 9930.2499465019. The cubic root of 98609864 is about 461.9980260156.

The spelling of 98609864 in words is "ninety-eight million, six hundred nine thousand, eight hundred sixty-four".