98312765 has 4 divisors (see below), whose sum is σ = 117975324. Its totient is φ = 78650208.

The previous prime is 98312761. The next prime is 98312789. The reversal of 98312765 is 56721389.

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 43744996 + 54567769 = 6614^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 98312765 - 2² = 98312761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98312761) 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, 9831272 + ... + 9831281.

It is an arithmetic number, because the mean of its divisors is an integer number (29493831).

Almost surely, 2^98312765 is an apocalyptic number.

It is an amenable number.

98312765 is a deficient number, since it is larger than the sum of its proper divisors (19662559).

98312765 is a wasteful number, since it uses less digits than its factorization.

98312765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19662558.

The product of its digits is 90720, while the sum is 41.

The square root of 98312765 is about 9915.2793707490. The cubic root of 98312765 is about 461.5335787981.

The spelling of 98312765 in words is "ninety-eight million, three hundred twelve thousand, seven hundred sixty-five".