98913409 has 12 divisors (see below), whose sum is σ = 120066624. Its totient is φ = 81095784.

The previous prime is 98913383. The next prime is 98913433. The reversal of 98913409 is 90431989.

It is not a de Polignac number, because 98913409 - 2⁵ = 98913377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98913509) 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, 42757 + ... + 45010.

It is an arithmetic number, because the mean of its divisors is an integer number (10005552).

Almost surely, 2^98913409 is an apocalyptic number.

It is an amenable number.

98913409 is a deficient number, since it is larger than the sum of its proper divisors (21153215).

98913409 is a wasteful number, since it uses less digits than its factorization.

98913409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87804 (or 87797 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 98913409 is about 9945.5220576901. The cubic root of 98913409 is about 462.4715876386.

The spelling of 98913409 in words is "ninety-eight million, nine hundred thirteen thousand, four hundred nine".