98989013 has 4 divisors (see below), whose sum is σ = 99086988. Its totient is φ = 98891040.

The previous prime is 98988991. The next prime is 98989019. The reversal of 98989013 is 31098989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74615044 + 24373969 = 8638^2 + 4937^2 .

It is a cyclic number.

It is not a de Polignac number, because 98989013 - 2²² = 94794709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98989019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47456 + ... + 49497.

It is an arithmetic number, because the mean of its divisors is an integer number (24771747).

Almost surely, 2^98989013 is an apocalyptic number.

It is an amenable number.

98989013 is a deficient number, since it is larger than the sum of its proper divisors (97975).

98989013 is a wasteful number, since it uses less digits than its factorization.

98989013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97974.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 98989013 is about 9949.3222382231. The cubic root of 98989013 is about 462.5893869598.

The spelling of 98989013 in words is "ninety-eight million, nine hundred eighty-nine thousand, thirteen".