98040909 has 16 divisors (see below), whose sum is σ = 135486720. Its totient is φ = 62986560.

The previous prime is 98040869. The next prime is 98040911. The reversal of 98040909 is 90904089.

It is not a de Polignac number, because 98040909 - 2¹⁹ = 97516621 is a prime.

It is a super-2 number, since 2×98040909² = 19224039675092562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98040959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78639 + ... + 79875.

It is an arithmetic number, because the mean of its divisors is an integer number (8467920).

Almost surely, 2^98040909 is an apocalyptic number.

It is an amenable number.

98040909 is a deficient number, since it is larger than the sum of its proper divisors (37445811).

98040909 is a wasteful number, since it uses less digits than its factorization.

98040909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 98040909 is about 9901.5609375492. The cubic root of 98040909 is about 461.1077727773.

The spelling of 98040909 in words is "ninety-eight million, forty thousand, nine hundred nine".