98702639 has 4 divisors (see below), whose sum is σ = 112803024. Its totient is φ = 84602256.

The previous prime is 98702633. The next prime is 98702651. The reversal of 98702639 is 93620789.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98702639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98702639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98702633) 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, 7050182 + ... + 7050195.

It is an arithmetic number, because the mean of its divisors is an integer number (28200756).

Almost surely, 2^98702639 is an apocalyptic number.

98702639 is a deficient number, since it is larger than the sum of its proper divisors (14100385).

98702639 is a wasteful number, since it uses less digits than its factorization.

98702639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14100384.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 98702639 is about 9934.9201808570. The cubic root of 98702639 is about 462.1428676175.

The spelling of 98702639 in words is "ninety-eight million, seven hundred two thousand, six hundred thirty-nine".