99998077 has 4 divisors (see below), whose sum is σ = 100161820. Its totient is φ = 99834336.

The previous prime is 99998071. The next prime is 99998099. The reversal of 99998077 is 77089999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7722841 + 92275236 = 2779^2 + 9606^2 .

It is a cyclic number.

It is not a de Polignac number, because 99998077 - 2⁷ = 99997949 is a prime.

It is a super-3 number, since 3×99998077³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99998071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80952 + ... + 82177.

It is an arithmetic number, because the mean of its divisors is an integer number (25040455).

Almost surely, 2^99998077 is an apocalyptic number.

It is an amenable number.

99998077 is a deficient number, since it is larger than the sum of its proper divisors (163743).

99998077 is a wasteful number, since it uses less digits than its factorization.

99998077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163742.

The product of its (nonzero) digits is 2571912, while the sum is 58.

The square root of 99998077 is about 9999.9038495378. The cubic root of 99998077 is about 464.1559080838.

The spelling of 99998077 in words is "ninety-nine million, nine hundred ninety-eight thousand, seventy-seven".