99776454 has 8 divisors (see below), whose sum is σ = 199552920. Its totient is φ = 33258816.

The previous prime is 99776449. The next prime is 99776471. The reversal of 99776454 is 45467799.

It is a sphenic number, since it is the product of 3 distinct primes.

99776454 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 99776397 and 99776406.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8314699 + ... + 8314710.

It is an arithmetic number, because the mean of its divisors is an integer number (24944115).

Almost surely, 2^99776454 is an apocalyptic number.

99776454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99776454 is a wasteful number, since it uses less digits than its factorization.

99776454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16629414.

The product of its digits is 1905120, while the sum is 51.

The square root of 99776454 is about 9988.8164464065. The cubic root of 99776454 is about 463.8127557758.

The spelling of 99776454 in words is "ninety-nine million, seven hundred seventy-six thousand, four hundred fifty-four".