98799890 has 16 divisors (see below), whose sum is σ = 203245632. Its totient is φ = 33874224.

The previous prime is 98799863. The next prime is 98799901. The reversal of 98799890 is 9899789.

It is a super-2 number, since 2×98799890² = 19522836528024200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705644 + ... + 705783.

It is an arithmetic number, because the mean of its divisors is an integer number (12702852).

Almost surely, 2^98799890 is an apocalyptic number.

98799890 is an abundant number, since it is smaller than the sum of its proper divisors (104445742).

98799890 is a wasteful number, since it uses less digits than its factorization.

98799890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411441.

The product of its (nonzero) digits is 2939328, while the sum is 59.

The square root of 98799890 is about 9939.8133785298. The cubic root of 98799890 is about 462.2945998089.

The spelling of 98799890 in words is "ninety-eight million, seven hundred ninety-nine thousand, eight hundred ninety".