98908765 has 4 divisors (see below), whose sum is σ = 118690524. Its totient is φ = 79127008.

The previous prime is 98908757. The next prime is 98908781. The reversal of 98908765 is 56780989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56780989 = 449 ⋅126461.

It can be written as a sum of positive squares in 2 ways, for example, as 72097081 + 26811684 = 8491^2 + 5178^2 .

It is a cyclic number.

It is not a de Polignac number, because 98908765 - 2³ = 98908757 is a prime.

It is a Duffinian number.

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, 9890872 + ... + 9890881.

It is an arithmetic number, because the mean of its divisors is an integer number (29672631).

Almost surely, 2^98908765 is an apocalyptic number.

It is an amenable number.

98908765 is a deficient number, since it is larger than the sum of its proper divisors (19781759).

98908765 is a wasteful number, since it uses less digits than its factorization.

98908765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19781758.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 98908765 is about 9945.2885830427. The cubic root of 98908765 is about 462.4643498209.

The spelling of 98908765 in words is "ninety-eight million, nine hundred eight thousand, seven hundred sixty-five".