98919245 has 4 divisors (see below), whose sum is σ = 118703100. Its totient is φ = 79135392.

The previous prime is 98919239. The next prime is 98919257. The reversal of 98919245 is 54291989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54291989 = 6257 ⋅8677.

It can be written as a sum of positive squares in 2 ways, for example, as 19245769 + 79673476 = 4387^2 + 8926^2 .

It is a cyclic number.

It is not a de Polignac number, because 98919245 - 2⁴ = 98919229 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98919245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9891920 + ... + 9891929.

It is an arithmetic number, because the mean of its divisors is an integer number (29675775).

Almost surely, 2^98919245 is an apocalyptic number.

It is an amenable number.

98919245 is a deficient number, since it is larger than the sum of its proper divisors (19783855).

98919245 is a wasteful number, since it uses less digits than its factorization.

98919245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19783854.

The product of its digits is 233280, while the sum is 47.

The square root of 98919245 is about 9945.8154517365. The cubic root of 98919245 is about 462.4806829039.

The spelling of 98919245 in words is "ninety-eight million, nine hundred nineteen thousand, two hundred forty-five".