99349778 has 8 divisors (see below), whose sum is σ = 162572400. Its totient is φ = 45158980.

The previous prime is 99349777. The next prime is 99349793. The reversal of 99349778 is 87794399.

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

It is not an unprimeable number, because it can be changed into a prime (99349771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2257928 + ... + 2257971.

It is an arithmetic number, because the mean of its divisors is an integer number (20321550).

Almost surely, 2^99349778 is an apocalyptic number.

99349778 is a deficient number, since it is larger than the sum of its proper divisors (63222622).

99349778 is a wasteful number, since it uses less digits than its factorization.

99349778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515912.

The product of its digits is 3429216, while the sum is 56.

The square root of 99349778 is about 9967.4358789009. The cubic root of 99349778 is about 463.1506739355.

The spelling of 99349778 in words is "ninety-nine million, three hundred forty-nine thousand, seven hundred seventy-eight".