98020090 has 24 divisors (see below), whose sum is σ = 205243092. Its totient is φ = 33606720.

The previous prime is 98020073. The next prime is 98020099. The reversal of 98020090 is 9002089.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97278769 + 741321 = 9863^2 + 861^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

98020090 is a modest number, since divided by 20090 gives 980 as remainder.

It is not an unprimeable number, because it can be changed into a prime (98020099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99531 + ... + 100510.

Almost surely, 2^98020090 is an apocalyptic number.

98020090 is an abundant number, since it is smaller than the sum of its proper divisors (107223002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98020090 is a wasteful number, since it uses less digits than its factorization.

98020090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200062 (or 200055 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 98020090 is about 9900.5095828447. The cubic root of 98020090 is about 461.0751317013.

The spelling of 98020090 in words is "ninety-eight million, twenty thousand, ninety".