98687773 has 4 divisors (see below), whose sum is σ = 98707968. Its totient is φ = 98667580.

The previous prime is 98687723. The next prime is 98687801. The reversal of 98687773 is 37778689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37778689 = 13 ⋅2906053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98687773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98687713) 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, 2340 + ... + 14242.

It is an arithmetic number, because the mean of its divisors is an integer number (24676992).

Almost surely, 2^98687773 is an apocalyptic number.

It is an amenable number.

98687773 is a deficient number, since it is larger than the sum of its proper divisors (20195).

98687773 is a wasteful number, since it uses less digits than its factorization.

98687773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20194.

The product of its digits is 3556224, while the sum is 55.

The square root of 98687773 is about 9934.1719836129. The cubic root of 98687773 is about 462.1196647228.

The spelling of 98687773 in words is "ninety-eight million, six hundred eighty-seven thousand, seven hundred seventy-three".