98666731 has 4 divisors (see below), whose sum is σ = 98689864. Its totient is φ = 98643600.

The previous prime is 98666723. The next prime is 98666747. The reversal of 98666731 is 13766689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13766689 = 1483 ⋅9283.

It is a cyclic number.

It is not a de Polignac number, because 98666731 - 2³ = 98666723 is a prime.

It is a super-2 number, since 2×98666731² = 19470247612452722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98669731) 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, 3105 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (24672466).

Almost surely, 2^98666731 is an apocalyptic number.

98666731 is a deficient number, since it is larger than the sum of its proper divisors (23133).

98666731 is a wasteful number, since it uses less digits than its factorization.

98666731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23132.

The product of its digits is 326592, while the sum is 46.

The square root of 98666731 is about 9933.1128554950. The cubic root of 98666731 is about 462.0868183262.

The spelling of 98666731 in words is "ninety-eight million, six hundred sixty-six thousand, seven hundred thirty-one".