98199487 has 4 divisors (see below), whose sum is σ = 100483240. Its totient is φ = 95915736.

The previous prime is 98199473. The next prime is 98199511. The reversal of 98199487 is 78499189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78499189 = 2381 ⋅32969.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98199487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98199427) 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, 1141812 + ... + 1141897.

It is an arithmetic number, because the mean of its divisors is an integer number (25120810).

Almost surely, 2^98199487 is an apocalyptic number.

98199487 is a deficient number, since it is larger than the sum of its proper divisors (2283753).

98199487 is a wasteful number, since it uses less digits than its factorization.

98199487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283752.

The product of its digits is 1306368, while the sum is 55.

The square root of 98199487 is about 9909.5654294222. The cubic root of 98199487 is about 461.3562478293.

It can be divided in two parts, 981994 and 87, that added together give a square (982081 = 991²).

The spelling of 98199487 in words is "ninety-eight million, one hundred ninety-nine thousand, four hundred eighty-seven".