98675621 has 6 divisors (see below), whose sum is σ = 108461766. Its totient is φ = 89705000.

The previous prime is 98675617. The next prime is 98675639. The reversal of 98675621 is 12657689.

It can be written as a sum of positive squares in only one way, i.e., 82555396 + 16120225 = 9086^2 + 4015^2 .

It is not a de Polignac number, because 98675621 - 2² = 98675617 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 (98675611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 407630 + ... + 407871.

It is an arithmetic number, because the mean of its divisors is an integer number (18076961).

Almost surely, 2^98675621 is an apocalyptic number.

It is an amenable number.

98675621 is a deficient number, since it is larger than the sum of its proper divisors (9786145).

98675621 is a wasteful number, since it uses less digits than its factorization.

98675621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815523 (or 815512 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 98675621 is about 9933.5603385694. The cubic root of 98675621 is about 462.1006961160.

The spelling of 98675621 in words is "ninety-eight million, six hundred seventy-five thousand, six hundred twenty-one".