98391523 has 4 divisors (see below), whose sum is σ = 98511040. Its totient is φ = 98272008.

The previous prime is 98391509. The next prime is 98391533. The reversal of 98391523 is 32519389.

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 98391523 - 2¹³ = 98383331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98391533) 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 3 ways as a sum of consecutive naturals, for example, 58515 + ... + 60172.

It is an arithmetic number, because the mean of its divisors is an integer number (24627760).

Almost surely, 2^98391523 is an apocalyptic number.

98391523 is a deficient number, since it is larger than the sum of its proper divisors (119517).

98391523 is a wasteful number, since it uses less digits than its factorization.

98391523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119516.

The product of its digits is 58320, while the sum is 40.

The square root of 98391523 is about 9919.2501228672. The cubic root of 98391523 is about 461.6567901954.

The spelling of 98391523 in words is "ninety-eight million, three hundred ninety-one thousand, five hundred twenty-three".