98775605 has 4 divisors (see below), whose sum is σ = 118530732. Its totient is φ = 79020480.

The previous prime is 98775587. The next prime is 98775613. The reversal of 98775605 is 50657789.

It is a happy number.

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 60124516 + 38651089 = 7754^2 + 6217^2 .

It is not a de Polignac number, because 98775605 - 2⁶ = 98775541 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 98775605.

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, 9877556 + ... + 9877565.

It is an arithmetic number, because the mean of its divisors is an integer number (29632683).

Almost surely, 2^98775605 is an apocalyptic number.

It is an amenable number.

98775605 is a deficient number, since it is larger than the sum of its proper divisors (19755127).

98775605 is a wasteful number, since it uses less digits than its factorization.

98775605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19755126.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 98775605 is about 9938.5917010409. The cubic root of 98775605 is about 462.2567193877.

The spelling of 98775605 in words is "ninety-eight million, seven hundred seventy-five thousand, six hundred five".