98687497 has 4 divisors (see below), whose sum is σ = 98707716. Its totient is φ = 98667280.

The previous prime is 98687467. The next prime is 98687507. The reversal of 98687497 is 79478689.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79478689 = 17 ⋅4675217.

It can be written as a sum of positive squares in 2 ways, for example, as 82519056 + 16168441 = 9084^2 + 4021^2 .

It is a cyclic number.

It is not a de Polignac number, because 98687497 - 2²³ = 90298889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98687437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (24676929).

Almost surely, 2^98687497 is an apocalyptic number.

It is an amenable number.

98687497 is a deficient number, since it is larger than the sum of its proper divisors (20219).

98687497 is a wasteful number, since it uses less digits than its factorization.

98687497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20218.

The product of its digits is 6096384, while the sum is 58.

The square root of 98687497 is about 9934.1580921586. The cubic root of 98687497 is about 462.1192339192.

The spelling of 98687497 in words is "ninety-eight million, six hundred eighty-seven thousand, four hundred ninety-seven".