98948921 has 6 divisors (see below), whose sum is σ = 103438650. Its totient is φ = 94646288.

The previous prime is 98948917. The next prime is 98949029. The reversal of 98948921 is 12984989.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70476025 + 28472896 = 8395^2 + 5336^2 .

It is not a de Polignac number, because 98948921 - 2² = 98948917 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 98948921.

It is not an unprimeable number, because it can be changed into a prime (98948911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92996 + ... + 94053.

It is an arithmetic number, because the mean of its divisors is an integer number (17239775).

Almost surely, 2^98948921 is an apocalyptic number.

It is an amenable number.

98948921 is a deficient number, since it is larger than the sum of its proper divisors (4489729).

98948921 is a wasteful number, since it uses less digits than its factorization.

98948921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187095 (or 187072 counting only the distinct ones).

The product of its digits is 373248, while the sum is 50.

The square root of 98948921 is about 9947.3072235656. The cubic root of 98948921 is about 462.5269267011.

The spelling of 98948921 in words is "ninety-eight million, nine hundred forty-eight thousand, nine hundred twenty-one".