98776799 has 4 divisors (see below), whose sum is σ = 107756520. Its totient is φ = 89797080.

The previous prime is 98776793. The next prime is 98776823. The reversal of 98776799 is 99767789.

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: 99767789 = 11 ⋅9069799.

It is a cyclic number.

It is not a de Polignac number, because 98776799 - 2⁸ = 98776543 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 (98776793) 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, 4489844 + ... + 4489865.

It is an arithmetic number, because the mean of its divisors is an integer number (26939130).

Almost surely, 2^98776799 is an apocalyptic number.

98776799 is a deficient number, since it is larger than the sum of its proper divisors (8979721).

98776799 is a wasteful number, since it uses less digits than its factorization.

98776799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979720.

The product of its digits is 12002256, while the sum is 62.

The square root of 98776799 is about 9938.6517697322. The cubic root of 98776799 is about 462.2585819674.

The spelling of 98776799 in words is "ninety-eight million, seven hundred seventy-six thousand, seven hundred ninety-nine".