98563765 has 4 divisors (see below), whose sum is σ = 118276524. Its totient is φ = 78851008.

The previous prime is 98563741. The next prime is 98563769. The reversal of 98563765 is 56736589.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69338929 + 29224836 = 8327^2 + 5406^2 .

It is a cyclic number.

It is not a de Polignac number, because 98563765 - 2⁵ = 98563733 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 (98563769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9856372 + ... + 9856381.

It is an arithmetic number, because the mean of its divisors is an integer number (29569131).

Almost surely, 2^98563765 is an apocalyptic number.

It is an amenable number.

98563765 is a deficient number, since it is larger than the sum of its proper divisors (19712759).

98563765 is a wasteful number, since it uses less digits than its factorization.

98563765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19712758.

The product of its digits is 1360800, while the sum is 49.

The square root of 98563765 is about 9927.9285351981. The cubic root of 98563765 is about 461.9260218373.

The spelling of 98563765 in words is "ninety-eight million, five hundred sixty-three thousand, seven hundred sixty-five".