98987213 has 4 divisors (see below), whose sum is σ = 106601628. Its totient is φ = 91372800.

The previous prime is 98987183. The next prime is 98987221. The reversal of 98987213 is 31278989.

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 20097289 + 78889924 = 4483^2 + 8882^2 .

It is a cyclic number.

It is not a de Polignac number, because 98987213 - 2¹² = 98983117 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 (98987263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3807188 + ... + 3807213.

It is an arithmetic number, because the mean of its divisors is an integer number (26650407).

Almost surely, 2^98987213 is an apocalyptic number.

It is an amenable number.

98987213 is a deficient number, since it is larger than the sum of its proper divisors (7614415).

98987213 is a wasteful number, since it uses less digits than its factorization.

98987213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614414.

The product of its digits is 217728, while the sum is 47.

The square root of 98987213 is about 9949.2317793888. The cubic root of 98987213 is about 462.5865830596.

The spelling of 98987213 in words is "ninety-eight million, nine hundred eighty-seven thousand, two hundred thirteen".