98609138 has 16 divisors (see below), whose sum is σ = 149295960. Its totient is φ = 48846336.

The previous prime is 98609117. The next prime is 98609153. The reversal of 98609138 is 83190689.

It can be written as a sum of positive squares in 4 ways, for example, as 88604569 + 10004569 = 9413^2 + 3163^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138728 + ... + 139436.

Almost surely, 2^98609138 is an apocalyptic number.

98609138 is a deficient number, since it is larger than the sum of its proper divisors (50686822).

98609138 is a wasteful number, since it uses less digits than its factorization.

98609138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 98609138 is about 9930.2133914634. The cubic root of 98609138 is about 461.9968922162.

The spelling of 98609138 in words is "ninety-eight million, six hundred nine thousand, one hundred thirty-eight".