99450815 has 8 divisors (see below), whose sum is σ = 119415168. Its totient is φ = 79511200.

The previous prime is 99450803. The next prime is 99450823. The reversal of 99450815 is 51805499.

It is a happy number.

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

It is not a de Polignac number, because 99450815 - 2⁶ = 99450751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4274 + ... + 14736.

It is an arithmetic number, because the mean of its divisors is an integer number (14926896).

Almost surely, 2^99450815 is an apocalyptic number.

99450815 is a deficient number, since it is larger than the sum of its proper divisors (19964353).

99450815 is a wasteful number, since it uses less digits than its factorization.

99450815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12369.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 99450815 is about 9972.5029456000. The cubic root of 99450815 is about 463.3076261407.

The spelling of 99450815 in words is "ninety-nine million, four hundred fifty thousand, eight hundred fifteen".