99995777 has 4 divisors (see below), whose sum is σ = 114280896. Its totient is φ = 85710660.

The previous prime is 99995771. The next prime is 99995783. The reversal of 99995777 is 77759999.

It is a happy number.

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: 77759999 = 67 ⋅1160597.

It is an interprime number because it is at equal distance from previous prime (99995771) and next prime (99995783).

It is not a de Polignac number, because 99995777 - 2¹⁶ = 99930241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99995771) 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, 7142549 + ... + 7142562.

It is an arithmetic number, because the mean of its divisors is an integer number (28570224).

Almost surely, 2^99995777 is an apocalyptic number.

It is an amenable number.

99995777 is a deficient number, since it is larger than the sum of its proper divisors (14285119).

99995777 is a wasteful number, since it uses less digits than its factorization.

99995777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285118.

The product of its digits is 11252115, while the sum is 62.

The square root of 99995777 is about 9999.7888477707. The cubic root of 99995777 is about 464.1523494594.

The spelling of 99995777 in words is "ninety-nine million, nine hundred ninety-five thousand, seven hundred seventy-seven".