98994639 has 16 divisors (see below), whose sum is σ = 133952000. Its totient is φ = 65023776.

The previous prime is 98994631. The next prime is 98994653. The reversal of 98994639 is 93649989.

It is not a de Polignac number, because 98994639 - 2³ = 98994631 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 (98994631) 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, 70062 + ... + 71460.

It is an arithmetic number, because the mean of its divisors is an integer number (8372000).

Almost surely, 2^98994639 is an apocalyptic number.

98994639 is a deficient number, since it is larger than the sum of its proper divisors (34957361).

98994639 is a wasteful number, since it uses less digits than its factorization.

98994639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734.

The product of its digits is 3779136, while the sum is 57.

The square root of 98994639 is about 9949.6049670326. The cubic root of 98994639 is about 462.5981504866.

The spelling of 98994639 in words is "ninety-eight million, nine hundred ninety-four thousand, six hundred thirty-nine".