99078838 has 4 divisors (see below), whose sum is σ = 148618260. Its totient is φ = 49539418.

The previous prime is 99078809. The next prime is 99078841. The reversal of 99078838 is 83887099.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×99078838² = 19633232278860488, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 24769708 + ... + 24769711.

It is an arithmetic number, because the mean of its divisors is an integer number (37154565).

Almost surely, 2^99078838 is an apocalyptic number.

99078838 is a deficient number, since it is larger than the sum of its proper divisors (49539422).

99078838 is a wasteful number, since it uses less digits than its factorization.

99078838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49539421.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 99078838 is about 9953.8353412140. The cubic root of 99078838 is about 462.7292662195.

The spelling of 99078838 in words is "ninety-nine million, seventy-eight thousand, eight hundred thirty-eight".