99447078 has 32 divisors (see below), whose sum is σ = 209164032. Its totient is φ = 31460000.

The previous prime is 99447053. The next prime is 99447079. The reversal of 99447078 is 87074499.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99447079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15328 + ... + 20828.

It is an arithmetic number, because the mean of its divisors is an integer number (6536376).

Almost surely, 2^99447078 is an apocalyptic number.

99447078 is an abundant number, since it is smaller than the sum of its proper divisors (109716954).

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

99447078 is a wasteful number, since it uses less digits than its factorization.

99447078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 99447078 is about 9972.3155786407. The cubic root of 99447078 is about 463.3018229294.

The spelling of 99447078 in words is "ninety-nine million, four hundred forty-seven thousand, seventy-eight".