99678956 has 24 divisors (see below), whose sum is σ = 198908640. Its totient is φ = 43299072.

The previous prime is 99678947. The next prime is 99678977. The reversal of 99678956 is 65987699.

It is a junction number, because it is equal to n+sod(n) for n = 99678895 and 99678904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55496 + ... + 57263.

It is an arithmetic number, because the mean of its divisors is an integer number (8287860).

Almost surely, 2^99678956 is an apocalyptic number.

It is an amenable number.

99678956 is a deficient number, since it is larger than the sum of its proper divisors (99229684).

99678956 is a wasteful number, since it uses less digits than its factorization.

99678956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112793 (or 112791 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The square root of 99678956 is about 9983.9348956211. The cubic root of 99678956 is about 463.6616327681.

The spelling of 99678956 in words is "ninety-nine million, six hundred seventy-eight thousand, nine hundred fifty-six".