99768782 has 4 divisors (see below), whose sum is σ = 149653176. Its totient is φ = 49884390.

The previous prime is 99768763. The next prime is 99768797. The reversal of 99768782 is 28786799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28786799 = 1789 ⋅16091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24942194 + ... + 24942197.

It is an arithmetic number, because the mean of its divisors is an integer number (37413294).

Almost surely, 2^99768782 is an apocalyptic number.

99768782 is a deficient number, since it is larger than the sum of its proper divisors (49884394).

99768782 is a wasteful number, since it uses less digits than its factorization.

99768782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49884393.

The product of its digits is 3048192, while the sum is 56.

The square root of 99768782 is about 9988.4324095426. The cubic root of 99768782 is about 463.8008676581.

The spelling of 99768782 in words is "ninety-nine million, seven hundred sixty-eight thousand, seven hundred eighty-two".