99260815 has 4 divisors (see below), whose sum is σ = 119112984. Its totient is φ = 79408648.

The previous prime is 99260803. The next prime is 99260839. The reversal of 99260815 is 51806299.

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

It is a cyclic number.

It is not a de Polignac number, because 99260815 - 2⁵ = 99260783 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 9926077 + ... + 9926086.

It is an arithmetic number, because the mean of its divisors is an integer number (29778246).

Almost surely, 2^99260815 is an apocalyptic number.

99260815 is a deficient number, since it is larger than the sum of its proper divisors (19852169).

99260815 is a wasteful number, since it uses less digits than its factorization.

99260815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19852168.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 99260815 is about 9962.9721970906. The cubic root of 99260815 is about 463.0123895196.

The spelling of 99260815 in words is "ninety-nine million, two hundred sixty thousand, eight hundred fifteen".