98947791 has 16 divisors (see below), whose sum is σ = 147141120. Its totient is φ = 65716920.

The previous prime is 98947759. The next prime is 98947829. The reversal of 98947791 is 19774989.

98947791 is a `hidden beast` number, since 9 + 89 + 477 + 91 = 666.

It is not a de Polignac number, because 98947791 - 2⁵ = 98947759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98947591) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 556 + ... + 14078.

It is an arithmetic number, because the mean of its divisors is an integer number (9196320).

Almost surely, 2^98947791 is an apocalyptic number.

98947791 is a deficient number, since it is larger than the sum of its proper divisors (48193329).

98947791 is a wasteful number, since it uses less digits than its factorization.

98947791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13803 (or 13797 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 98947791 is about 9947.2504241122. The cubic root of 98947791 is about 462.5251660034.

The spelling of 98947791 in words is "ninety-eight million, nine hundred forty-seven thousand, seven hundred ninety-one".