98764221 has 4 divisors (see below), whose sum is σ = 131685632. Its totient is φ = 65842812.

The previous prime is 98764219. The next prime is 98764241. The reversal of 98764221 is 12246789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98764221 - 2¹ = 98764219 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 98764221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98764241) 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, 16460701 + ... + 16460706.

It is an arithmetic number, because the mean of its divisors is an integer number (32921408).

Almost surely, 2^98764221 is an apocalyptic number.

It is an amenable number.

98764221 is a deficient number, since it is larger than the sum of its proper divisors (32921411).

98764221 is a wasteful number, since it uses less digits than its factorization.

98764221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32921410.

The product of its digits is 48384, while the sum is 39.

The square root of 98764221 is about 9938.0189675810. The cubic root of 98764221 is about 462.2389601692.

The spelling of 98764221 in words is "ninety-eight million, seven hundred sixty-four thousand, two hundred twenty-one".