98715851 has 4 divisors (see below), whose sum is σ = 106309392. Its totient is φ = 91122312.

The previous prime is 98715847. The next prime is 98715853. The reversal of 98715851 is 15851789.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15851789 = 41 ⋅386629.

It is a cyclic number.

It is not a de Polignac number, because 98715851 - 2² = 98715847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98715853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796751 + ... + 3796776.

It is an arithmetic number, because the mean of its divisors is an integer number (26577348).

Almost surely, 2^98715851 is an apocalyptic number.

98715851 is a deficient number, since it is larger than the sum of its proper divisors (7593541).

98715851 is a wasteful number, since it uses less digits than its factorization.

98715851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593540.

The product of its digits is 100800, while the sum is 44.

The square root of 98715851 is about 9935.5850859423. The cubic root of 98715851 is about 462.1634869890.

The spelling of 98715851 in words is "ninety-eight million, seven hundred fifteen thousand, eight hundred fifty-one".