98257791 has 4 divisors (see below), whose sum is σ = 131010392. Its totient is φ = 65505192.

The previous prime is 98257769. The next prime is 98257801. The reversal of 98257791 is 19775289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19775289 = 3 ⋅6591763.

It is not a de Polignac number, because 98257791 - 2¹¹ = 98255743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98257791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98257891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16376296 + ... + 16376301.

It is an arithmetic number, because the mean of its divisors is an integer number (32752598).

Almost surely, 2^98257791 is an apocalyptic number.

98257791 is a deficient number, since it is larger than the sum of its proper divisors (32752601).

98257791 is a wasteful number, since it uses less digits than its factorization.

98257791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32752600.

The product of its digits is 317520, while the sum is 48.

The square root of 98257791 is about 9912.5067969712. The cubic root of 98257791 is about 461.4475368088.

The spelling of 98257791 in words is "ninety-eight million, two hundred fifty-seven thousand, seven hundred ninety-one".