98988890 has 192 divisors, whose sum is σ = 257402880. Its totient is φ = 26611200.

The previous prime is 98988887. The next prime is 98988893. The reversal of 98988890 is 9888989.

It is an interprime number because it is at equal distance from previous prime (98988887) and next prime (98988893).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98988893) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3193175 + ... + 3193205.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^98988890 is an apocalyptic number.

98988890 is an abundant number, since it is smaller than the sum of its proper divisors (158413990).

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

98988890 is a wasteful number, since it uses less digits than its factorization.

98988890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 59.

The square root of 98988890 is about 9949.3160568956. The cubic root of 98988890 is about 462.5891953611.

The spelling of 98988890 in words is "ninety-eight million, nine hundred eighty-eight thousand, eight hundred ninety".