98763209 has 4 divisors (see below), whose sum is σ = 100382340. Its totient is φ = 97144080.

The previous prime is 98763191. The next prime is 98763263. The reversal of 98763209 is 90236789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90236789 = 947 ⋅95287.

It can be written as a sum of positive squares in 2 ways, for example, as 4963984 + 93799225 = 2228^2 + 9685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98763209 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 98763209.

It is not an unprimeable number, because it can be changed into a prime (98763409) 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, 809474 + ... + 809595.

It is an arithmetic number, because the mean of its divisors is an integer number (25095585).

Almost surely, 2^98763209 is an apocalyptic number.

It is an amenable number.

98763209 is a deficient number, since it is larger than the sum of its proper divisors (1619131).

98763209 is a wasteful number, since it uses less digits than its factorization.

98763209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619130.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 98763209 is about 9937.9680518706. The cubic root of 98763209 is about 462.2373813672.

The spelling of 98763209 in words is "ninety-eight million, seven hundred sixty-three thousand, two hundred nine".