98065621 has 4 divisors (see below), whose sum is σ = 98093772. Its totient is φ = 98037472.

The previous prime is 98065609. The next prime is 98065633. The reversal of 98065621 is 12656089.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (98065609) and next prime (98065633).

It can be written as a sum of positive squares in 2 ways, for example, as 53363025 + 44702596 = 7305^2 + 6686^2 .

It is a cyclic number.

It is not a de Polignac number, because 98065621 - 2⁹ = 98065109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98065661) 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, 7966 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (24523443).

Almost surely, 2^98065621 is an apocalyptic number.

It is an amenable number.

98065621 is a deficient number, since it is larger than the sum of its proper divisors (28151).

98065621 is a wasteful number, since it uses less digits than its factorization.

98065621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28150.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 98065621 is about 9902.8087429779. The cubic root of 98065621 is about 461.1465114975.

The spelling of 98065621 in words is "ninety-eight million, sixty-five thousand, six hundred twenty-one".