98978873 has 6 divisors (see below), whose sum is σ = 115138746. Its totient is φ = 84838992.

The previous prime is 98978861. The next prime is 98978881. The reversal of 98978873 is 37887989.

It can be written as a sum of positive squares in only one way, i.e., 93180409 + 5798464 = 9653^2 + 2408^2 .

It is not a de Polignac number, because 98978873 - 2⁴ = 98978857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98978833) 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, 1009940 + ... + 1010037.

It is an arithmetic number, because the mean of its divisors is an integer number (19189791).

Almost surely, 2^98978873 is an apocalyptic number.

It is an amenable number.

98978873 is a deficient number, since it is larger than the sum of its proper divisors (16159873).

98978873 is a wasteful number, since it uses less digits than its factorization.

98978873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019991 (or 2019984 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 59.

The square root of 98978873 is about 9948.8126427227. The cubic root of 98978873 is about 462.5735912117.

The spelling of 98978873 in words is "ninety-eight million, nine hundred seventy-eight thousand, eight hundred seventy-three".