98072815 has 4 divisors (see below), whose sum is σ = 117687384. Its totient is φ = 78458248.

The previous prime is 98072783. The next prime is 98072833. The reversal of 98072815 is 51827089.

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 98072815 - 2⁵ = 98072783 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9807277 + ... + 9807286.

It is an arithmetic number, because the mean of its divisors is an integer number (29421846).

Almost surely, 2^98072815 is an apocalyptic number.

98072815 is a deficient number, since it is larger than the sum of its proper divisors (19614569).

98072815 is a wasteful number, since it uses less digits than its factorization.

98072815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19614568.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 98072815 is about 9903.1719665974. The cubic root of 98072815 is about 461.1577876439.

The spelling of 98072815 in words is "ninety-eight million, seventy-two thousand, eight hundred fifteen".